A clip shows a big house on a sunny day in a quiet neighbourhood. Next, the team appears in a room, full of old things, where Tilly is on her laptop and Kyla on her phone.

EB seems to be looking for something.

He’s a teenager. He has short curly black hair and is clean-shaven. He wears a plaid green shirt over a T-shirt and jeans. Next, he spots a box under the label that reads "Cause of death."

E.B. says "CAUSE OF DEATH!" HM...
HEY, DO YOU THINK THIS COULD BE
A WHODUNIT MYSTERY?

Kyla opens the box.

Kyla says WHOA, A MUMMY! IT LOOKS
LIKE A TRAVEL SOUVENIR.
DO YOU THINK HERMIONE FOUND
THAT A MUMMY KILLED SOMEONE,
LIKE IN THOSE MONSTER MOVIES?

Tilly says THOSE MOVIES AREN'T
REAL! SOMETHING PROBABLY
KILLED THE MUMMY.

Kyla has long dark straight hair and wears a pink T-shirt. Tilly is in her mid-forties. She has dark brown hair down to the shoulders and wears a patterned blue blouse and dark trousers.

E.B. says ANOTHER CLUE IS
THIS TOOTH, AND I REALLY DOUBT
SOMEBODY BIT HIM TO DEATH.

The mommy was kept in a small box. Next to it, E.B. found an old tooth.

Tilly says THERE'S ALSO A BISCUIT.

Tilly picks a biscuit with a bite.

Kyla says IS THAT A CLUE?
IT LOOKS MORE LIKE A SNACK.
A VERY STALE ONE.

E.B. says YEAH... GREAT AUNT
HERMIONE MUST HAVE DROPPED IT
IN THE FILE BY ACCIDENT.

Tilly says THIS IS A VERY
MYSTERIOUS MYSTERY, INDEED.
HOW SHOULD WE SOLVE IT?

Kyla says I COULD TAKE THIS
TO THE ARCHAEOLOGY MUSEUM
TO FIND OUT MORE ABOUT MUMMIES.

E.B. says AND I'LL GO ASK A
DENTIST ABOUT THIS WEIRD TOOTH.

Tilly says AND I'LL STAY HERE
AND EAT BISCUITS! I MEAN... DO
RESEARCH. READY TO INVESTIGATE?

Each of them takes a single clue.

Kyla says READY!

E.B. says YEAH!

Tilly says READY!

They put their fists up and lower their voices while smiling.

(Theme music plays)

A dark red background with letter prints shows the shapes of a girl and a boy in the middle. It lights up and reveal EB and Kyla smiling.

Next, the kids are in a room looking at a portrait. The image zooms in a reveals the image of a woman in her sixties with white hair and a hat.

The song plays and the lyrics go
HISTORY IS FULL OF MYSTERIES
GREAT AUNT HERMIONE
COULD BE HEARD TO SAY

The woman in her sixties unfreezes and picks up a blue shining object from the floor.

The song continues
YOU HAVE TO KNOW
WHAT CAME BEFORE
TO NAVIGATE THE WORLD TODAY

Fast clips show images of a river, a bridge at night and a fire explosion.

The song continues
SHE WAS GOING TO WRITE A BOOK
CALLED "MYSTERY FILES."

Next, pictures of dogs are followed by the woman in her sixties writing down notes on a journal.

The song continues
TO TELL WHAT SHE UNCOVERED
BUT TIME RAN OUT
NEW ADVENTURES CAME FIRST
SO SHE LEFT HER SECRETS
UNDISCOVERED

THe woman in her sixties drives a car and next flies a small aircraft.

The song continues
AUNT TILLY INHERITED
HER BIG OLD HOUSE
FILLED WITH FILES AND CLUES
OF MUMMIES
SPIES AND VOYAGEURS
SCARY CREATURES TOO

Tilly stands in front of the house. She looks shocked. Next, EB checks a metal box full of objects. A mommy, a skull, and an eel appear among other objects.

The song continues
E.B. AND KYLA
WILL COME THROUGH
THEY'LL SOLVE

Kyla shows her phone screen. Tilly holds a lamp and a laptop shows the progress of file saving in a box.

The song continues
THE MYSTERY FILES
UNRAVEL ALL THE MYSTERIES
UPLOAD HIDDEN HISTORIES
THEY'LL SOLVE

EB, Kyla and Tilly pose together in a picture. The title of the show appears below in blue letters: "The Mystery Files."

The song ends
THE MYSTERY FILES.

(music plays)

The screen shows Kyla’s phone recording her visit to a dark room. She uses a torch to illuminate the old statues and skulls in there.

Kyla says MUMMIES ARE DEAD BODIES FROM
THOUSANDS OF YEARS AGO, THAT
HAVE BEEN CAREFULLY PRESERVED.
SO I HAVE COME HERE TO THIS
ARCHAEOLOGICAL STUDIES CENTRE.
I'LL HAVE TO WATCH MY STEP
IN THE DARKNESS.

Next, a man turn the lights on and enters the room. It’s a lab.

Andrew says OR, WE COULD
JUST TURN ON THE LIGHTS.

Kyla says YEAH! THAT COULD WORK, TOO.

Andrew is in his fifties. He’s mostly bald with curly grey hair on the temples and a full beard. He wears a dark grey shirt and black trousers.

Andrew says HI, YOU MUST BE KYLA.
I'M ANDREW. WELCOME TO MY LAB.
SO, I HEAR YOU HAVE SOME SORT OF
MUMMY MYSTERY YOU WANT TO SOLVE?

Kyla says WE THINK SO. ONE OF OUR CLUES
IS THIS SOUVENIR-SHOP MUMMY,
BUT WE WERE HOPING YOU COULD
TELL ME ABOUT REAL MUMMIES.

Kyla shows Andrew the little mummy.

Andrew says WELL, SOUVENIR
SHOP MUMMIES ARE COOL BUT YEAH,
I STUDY MUMMIES. AND, IN FACT,
WE HAVE A REAL MUMMY HERE.

Kyla says A REAL MUMMY?

Andrew says ABSOLUTELY.

Kyla says CAN I SEE IT?

Andrew says YEAH. WE CAN TAKE
THE CASE OFF AND YOU CAN GET UP
CLOSE AND PERSONAL WITH HER.

Kyla says I GOT THE BEST CLUE
THIS TIME. E.B.'S CLUE WAS
JUST AN OLD TOOTH.

Andrew says TEETH ARE COOL.

Kyla says NOT AS COOL AS A MUMMY.

Andrew says I'VE GOT TO
ADMIT... OKAY. MUMMIES ARE COOL.
BUT TEETH TELL YOU A LOT ABOUT
A PERSON. THEY TELL YOU HOW
THEY LIVED, HOW THEY DIED. AND
THEY'RE HARD. THEY LAST A LONG
TIME. SO THEY'RE VERY IMPORTANT
CLUES TO AN ARCHAEOLOGIST.

Kyla’s phone rings.

She says IT'S E.B.
HEY, E.B. HAVE YOU FOUND
SOMETHING ALREADY?

The kids connect in a conference call. On the other side, E.B. is with Marika.

E.B. says YEAH. I'M WITH DENTAL
TRAINING STUDENT MARIKA ARNOLD
AT A DENTIST TRAINING FACILITY,
AND SHE JUST TOLD ME
SOMETHING SHOCKING.
TELL KYLA WHAT YOU TOLD ME.

Marika says IT'S NOT A REAL TOOTH.

Marika is in her twenties. She has long blond hair and wears a dark blouse under a white uniform.

Kyla says WHAT DO YOU MEAN IT'S NOT A
REAL TOOTH? IT SURE LOOKS REAL.

E.B. says WELL, HOW DO YOU KNOW?

Marika says WELL, I KNOW BECAUSE
I'M ALMOST A DENTIST. AND BY
LOOKING AT IT, I CAN TELL.

E.B. says KYLA, I'LL CALL YOU
RIGHT BACK. I JUST NEED TO BE
A BIT MORE CONVINCED, YOU KNOW?
ALRIGHT, BYE.

The call ends.

Next, Marika and E.B. talk.

He says HOW CAN WE TEST TO SEE
IF IT'S REAL?

Marika says WELL, JUST HOLD
THIS ONE FOR A SECOND. LET ME
SHOW YOU. SO WE HAVE HERE THE
X-RAY OF THAT EXTRACTED TOOTH.

E.B. says OKAY.

Marika shows him an X-ray with the image of a tooth.

Marika says SO, FROM
LOOKING AT IT... HERE'S THE
ROOTS, HERE'S THE TOP OF THE
TOOTH. LOOK AT YOURS.

E.B. says OH... OKAY,
I THINK I SEE. THIS TOOTH
DOESN'T HAVE THE ROOTS.

E.B compares the image in the screen and the one he has.

Marika says EXACTLY.

E.B. says YOU'RE RIGHT, IT'S NOT
LIKE A REAL HUMAN TOOTH.
I BETTER CALL KYLA.

So, E.B. calls Kyla again.

Kyla says HEY, E.B. WHAT DID YOU FIND?

E.B. says MARIKA WAS RIGHT.
THE TOOTH IS A COPY.
BUT A REALLY GOOD COPY.
SOMEONE OBVIOUSLY WENT
TO A LOT OF TROUBLE TO MAKE IT.

Kyla says THAT'S WEIRD. WHY WOULD
SOMEONE MAKE A COPY OF A TOOTH?

Andrew says WE MAKE COPIES OF
TEETH ALL THE TIME. IT'S REALLY
IMPORTANT TO PRESERVE SOMETHING
AND MAKE MEASUREMENTS OFF OF IT.
WE HAVE TECHNICIANS WHO ARE
GREAT AT THAT SORT OF THING.

Kyla says GREAT AUNT HERMIONE
WAS AN ANTHROPOLOGIST.

An old portrait of Aunt Hermione appears on screen. She’s in her sixties. She has short white hair and wears glasses, a fitted blazer and a patterned scarf.

Andrew says REALLY?

Kyla says SO THAT MUST BE THE
EXPLANATION. AND I'LL BET THE
TOOTH IN THE FILE IS A REPLICA
FROM AN ACTUAL MUMMY'S TOOTH.

Andrew says COULD BE.

E.B. says I THINK YOU'RE RIGHT.

Kyla says IF IT'S AN EXACT
REPLICA, MAYBE YOU CAN STILL
SOLVE THE MYSTERY WITH THIS?

E.B. says ALRIGHT, I'M ON IT.

Kyla says AND I'LL CHECK IN WITH
AUNT TILLY TO SEE IF SHE'S FOUND
ANYTHING ABOUT THE CLUES YET.

E.B. says ALRIGHT.

The call ends.

Meanwhile, Tilly’s back home watching a film on her laptop. A call comes in.

Tilly says HEY, KYLA!

Kyla says IS EVERYTHING ALRIGHT?

There was a lot of noise since the film was still playing in the back. Tilly hurries to turn it off.

Tilly says YEAH!
I'M STILL DOING SOME RESEARCH.
DIDN'T FIND ANYTHING YET,
BUT I'LL KEEP WORKING ON IT!

Now, Back to E.B. The screen shows a close up of the tooth and, next, him and Marika sitting down talking.

E.B. says DO YOU THINK WE COULD
USE SOME OF YOUR TOOLS TO DO
SOME DETECTIVE WORK ON OUR CLUE?

Marika says I THINK SO. DENTISTS
ARE JUST LIKE DETECTIVES. WE ARE
ACTUALLY USING TESTS AND TOOLS
TO FIND OUT CLUES ABOUT OUR
PATIENTS' HEALTH. FIRST OF ALL,
WE HAVE TO WEAR THESE.

Marika hands E.B. a pair of loops.

E.B. says WHAT'S THAT?

Marika says THESE ARE LOOPS.

E.B. says WHAT ARE LOOPS?

Marika says JUST TRY THEM ON.
YOU'LL SEE.

E.B. says WHOA! IT'S LIKE A
MAGNIFYING GLASS ON MY EYES!

He uses the loops to magnify the tooth and see the details in it.

Marika says DO YOU SEE SOMETHING?

E.B. says I DO. THIS LITTLE
GREY FILLING ON TOP. IS THAT
SUPPOSED TO BE THERE?

says I DON'T THINK SO. IT MIGHT BE
SOME ADDITIVE, OR SOMETHING.

E.B. says REALLY?

Marika says MAYBE
WE COULD TRY AND PICK IT UP?

E.B. says WELL, LET'S START BY
PICKING AT THIS LITTLE... WHOA.

They use a pair of clamps to remove a grey substance.

Marika says WHAT'S THAT?

E.B. says IT'S SUPER SOFT, KIND OF
LIKE GUM. YOU KNOW, ON A HOT DAY
WHEN YOU STEP IN GUM AND
IT'S REALLY GROSS?

Marika says IT DOES LOOK LIKE THAT.

E.B. pulls out the grey paste from the tooth and along with it, a small ball of what looks like white thread comes out too.

E.B. says YEAH. EWW... WHOA! WHOA!

Marika says IT LOOKS LIKE FIBERS.

E.B. says IT DOES LOOK LIKE FIBERS.
IT LOOKS LIKE STRING, KIND OF.

Marika says HM. INTERESTING.

E.B. says WHAT DO YOU THINK IT IS?

Marika says PROBABLY AN
ANCIENT WAY TO FILL A TOOTH.

E.B. says I THINK WE'RE ON TO
SOMETHING. WAIT A SECOND... DO
YOU THINK THIS FIBER COULD HAVE
BEEN COATED IN SOME SORT OF
POISON THAT KILLED THE MUMMY!

Marika says WELL, I KIND OF
DOUBT IT. I THINK IT MOST LIKELY
IS SOME SORT OF FILLING, LIKE
THE WAY IN ANCIENT EGYPT THEY
WOULD ACTUALLY FILL A CAVITY.
BUT NOWADAYS WE HAVE WAY BETTER
FILLING MATERIAL. WE DON'T USE
LINEN. WOULD YOU LIKE TO TRY
AND DO A FILLING?

E.B. says I WOULD LOVE TO,
BUT I'M NOT A DENTIST.

Marika says THAT'S WHY WE'RE
IN A SIMULATION LAB. WE LET
STUDENTS PRACTICE ON DUMMIES.

Marika has a dummy patient with fake dummy teeth for E.B. to practice. He puts the dummy in position while E.B. puts on gloves.

E.B. says HELLO THERE!
DON'T YOU WORRY,
THIS WON'T HURT A BIT.

Marika says THIS, HERE...
AND YOU JUST GO SLOWLY AND YOU
MAKE IT SMOOTH, LIKE THIS. OKAY?

First, Marika shows him how to use the tools and instruments and where to put them inside the patient’s mouth. Now, E.B. tries it out.

E.B. says OKAY. ALL MY YEARS
OF DENTIST TRAINING ARE ABOUT
TO FINALLY PAY OFF.
WHOA...
WHOA! THIS IS SO COOL.
SO, HOW IS THE WIFE AND KIDS?
OH, PRETTY NICE.
OH, WHAT DO YOU THINK?

Marika says IT LOOKS PRETTY GOOD.
DO YOU STILL SEE CAVITIES
IN THERE?

E.B. says I THINK THIS DUMMY
IS CAVITY FREE.

Marika says AMAZING.

E.B. says IT'S ALL OVER.

Marika says ACTUALLY NO,
BECAUSE NOW HE'S STUCK WITH A
HOLE IN HIS TOOTH. SO USUALLY
WE PUT A FILLING. IT CAN BE
PLASTIC, WHICH IS LIGHT...
AMALGAM, WHICH IS THE GREY
FILLING... OR GOLD.

A series of pictures on screen show cavities and tooth fillings of all sorts.

E.B. says OH, COOL! YEAH, THOSE
SEEM LIKE THEY WOULD WORK
BETTER THAN THE LINEN
THE ANCIENT EGYPTIANS USED.
GOT TO TELL KYLA ABOUT THIS.

E.B. calls Kyla. She sees him on her screen with the mask still on.

Kyla says HA! HA!
WHAT IS THAT, A SNORKEL?

E.B. says HA! HA! VERY FUNNY. IT'S
DENTIST EQUIPMENT. I'VE BEEN
WORKING ON THIS TOOTH. I FOUND
OUT THAT THE MUMMY PROBABLY
HAD A TOOTHACHE AND THE DENTIST
WAS REALLY JUST TRYING TO HELP
BY USING ANYTHING HE HAD THERE
AT THE MOMENT, WHICH WAS LINEN.

Kyla says WE'RE JUST ABOUT
TO OPEN UP A MUMMY CASE NOW.

E.B. says WHAT? YOU'RE OPENING
A REAL MUMMY CASE?

Kyla says YUP. REALLY EXCITING.
GOT TO GO!

E.B. says OH…

The call ends.

Next, Andrew and part of his staff help Kyla. They open a large glass cage to have a closer look to a mummy.

Andrew says MAKE SURE
YOU'VE GOT GOOD SUCTION THERE.
1, 2, 3...
SO KYLA, ARE YOU READY
TO SEE A REAL MUMMY?

Kyla says ABSOLUTELY.

Andrew says ALRIGHT.

The staff open a sarcophagus and Kyla approaches.

Kyla says WHOA.
OH MY GOSH.

Inside, on a red fabric, a very old skeleton is preserved. The arms in the skeleton are crossed over the chest.

Andrew says SO KYLA, LET ME
INTRODUCE YOU TO LADY HUDSON.

Kyla says SHE LOOKS REALLY OLD.

Andrew says WELL, SHE IS.
SHE'S ABOUT 2,000 YEARS OLD.

Kyla says AND THERE'S SOME
WEIRD SMELL COMING FROM HER.

Andrew says YOU'RE SMELLING SPICES.
WHEN SHE WAS MUMMIFIED, THEY
WOULD HAVE PUT OILS AND SPICES
ON THE SKIN. HOW ABOUT WE PUT
SOME GLOVES ON AND WE CAN TAKE
A GOOD CLOSE LOOK AT THE MUMMY?

Kyla says WHY? IS IT DANGEROUS
TO TOUCH THE MUMMY?

Andrew says NO. NOT
DANGEROUS FOR US. IT'S DANGEROUS
FOR THE MUMMY. SHE'S NOT VERY
WELL PRESERVED, BUT WE WANT
TO KEEP HER AS WELL PRESERVED
AS POSSIBLE, AND THE OILS
FROM YOUR HAND CAN DAMAGE HER.

Kyla says THANK YOU.

Andrew says SO, DO YOU WANT TO TOUCH HER?

They put on gloves and touch the mummy.

Kyla says SURE.
DO I JUST TOUCH ANYWHERE?

Andrew says YEAH. WHAT'S THAT FEEL LIKE?

Kyla says IT'S VERY BUMPY.
IT'S REALLY ROCK SOLID, TOO.

Andrew says SO THAT WAS
SOME PACKING THAT WAS
IN HER ABDOMEN TO KEEP
THE SHAPE OF HER STOMACH.
THAT'S HER SKULL.

Kyla says IT'S ROCK HARD, TOO.

Andrew says YEAH. SO, THEY
USED RESINS TO HELP MUMMIFY HER.
AND SO THE RESINS MAKE IT
VERY, VERY DENSE. SO, YOU SEE
THE WAY THE WRAPPING GOES?

Kyla says IT'S CROSSED.

Andrew continues
YEAH. THAT PARTICULAR PATTERN
IDENTIFIES HER AS COMING
FROM THE ROMAN PERIOD.

Kyla says OH.

Andrew says SO THAT'S HOW
WE KNOW WHAT AGE SHE'S FROM.

Kyla says SHE'S IN A BUNCH OF PIECES.
DID SOMETHING BAD HAPPEN TO HER?

Andrew says WE DON'T KNOW
FOR SURE BUT, ABOUT 100 YEARS
AGO, OFTEN A BUNCH OF PEOPLE
WOULD GET TOGETHER FOR AN
EVENING'S ENTERTAINMENT AND THEY
WOULD HAVE A MUMMY UNWRAPPING
PARTY. THEY WOULD SIT AROUND
AND THEY WOULD UNWRAP THE MUMMY.
AND THEY WOULD BE LOOKING
FOR AMULETS AND THINGS INSIDE.

Kyla says MUMMY UNWRAPPING
PARTIES. PEOPLE DON'T HAVE THOSE
KINDS OF PARTIES TODAY, RIGHT?

Andrew says NO. NO, INDEED.
AND IN FACT, IF YOU'RE EVER
LUCKY ENOUGH TO FIND SOMETHING
LIKE THIS, THE THING YOU'VE GOT
TO DO IS KEEP IT THE WAY IT IS
UNTIL SOMEONE LIKE ME CAN COME
AND TAKE A LOOK AT IT. AND EVEN
WHEN I COME TO LOOK AT IT,
WE TRY TO USE NON-DESTRUCTIVE
METHODS LIKE PUTTING IT IN AN
X-RAY MACHINE OR CT SCANNER SO
WE DON'T END UP TAKING A MUMMY
APART LIKE THIS ONE IS.

Kyla says CAN WE EXAMINE HER
TEETH? OUR MYSTERY SEEMS TO HAVE
SOMETHING TO DO WITH TEETH.

Andrew says OF COURSE. WE CAN
ACTUALLY TAKE A REAL CLOSE LOOK.

Andrew takes out the skull and hands it to Kyla.

Kyla says WHOA.

Andrew says SO, TELL ME
WHAT YOU THINK YOU SEE.

Kyla says SHE DEFINITELY HAS TEETH,
BUT THEY LOOK REALLY WORN.


Andrew says THEY ARE
VERY WORN. ABSOLUTELY.

Kyla says IT'S THAT JUST
BECAUSE THEY'RE OLD?

Andrew says IT'S NOT JUST
BECAUSE SHE'S OLD. THAT'S WHAT
THEY WERE LIKE DURING HER LIFE.
AND LET ME SHOW YOU SOMETHING.

Andrew shows Kyla a print of an X-ray with a close up to a mouth. The teeth in it look quite particular. Some are missing, their dimensions vary and they looked worn.

Andrew continues
THIS IS CALLED A PANORAMIC
X-RAY. AND IT'S TAKEN WHEN
THE X-RAY MACHINE GOES AROUND
YOUR HEAD. SO IT KIND OF SPREADS
YOUR TEETH OUT ON THE PAGE. AND
NORMALLY, IF YOU'VE GOT NORMAL
TEETH, YOUR CROWN SHOULD LOOK
WHITE AND DENSE. SO SHE'S HARDLY
GOT ANY CROWN LEFT ON THE TOP
OF HER TEETH. SHE'S GOT A COUPLE
OF ABSCESSES HERE, TOO.

Kyla says YEAH.

Andrew says THAT WOULD
HAVE BEEN AN INFECTION.

Kyla says BUT HER TEETH COULDN'T
HAVE CAUSED HER DEATH, RIGHT?

Andrew says WELL, MAYBE THEY
COULD. THE ANCIENT EGYPTIANS
DIDN'T HAVE ANTIBIOTICS. AND SO,
IF SHE GOT AN INFECTION THAT
COULD MAKE HER VERY SICK.
AND WE THINK SOME OTHER MUMMIES
MAY HAVE ULTIMATELY DIED
FROM A DENTAL INFECTION.

Kyla says WOW!
I'VE GOT TO TELL THIS TO E.B.

Kyla calls E.B.

Kyla says E.B., BEFORE ANTIBIOTICS
PEOPLE COULD DIE FROM
DENTAL INFECTIONS!

E.B. says WHAT? SERIOUSLY?

Kyla says YEAH. A CAVITY COULD
TOTALLY KILL A PERSON.

E.B. hangs up and says OKAY. KYLA SAYS TOOTH DECAY CAN KILL YOU.

Marika says WELL, I GUESS
YOU COULD SAY SO, BUT NOT
NOWADAYS. WITH MODERN DENTISTRY
AND ANTIBIOTICS, WE CAN FIGHT
INFECTIONS AND IT VERY RARELY
HAPPENS. BUT I'M ASSUMING IN
ANCIENT EGYPT IT COULD HAVE
HAPPENED VERY EASILY.

A picture on screen shows the drawing of two ancient Egyptian men and a mummy.

E.B. says BUT HOW COULD
A TOOTH PROBLEM KILL YOU?

Marika says BASICALLY,
THE BACTERIA CAN REACH INTO YOUR
BLOOD STREAM. AND THAT CAN REACH
YOUR HEART AND YOUR BRAIN AND
CAN KILL YOU THROUGH INFECTION.

An animated fast clip shows the bacteria getting in the blood system and reaching the brain.

E.B. says WELL, PLEASE EXCUSE ME
WHILE I GO BRUSH MY TEETH
A COUPLE THOUSAND TIMES.

E.B.’s phone beeps.

He says OH, IT'S AN E-MAIL.
WHOA! KYLA SENT ME THIS PICTURE
FROM THE MUMMY'S MOUTH. LOOK!

He shows Marika a new caption of a teeth X-ray in his phone.

Marika says COOL! LET'S
COMPARE. HERE IS A PANORAMIC
X-RAY OF AN ACTUAL 30 YEAR OLD
ADULT. NOW, WHAT DO YOU SEE?

Marika compares both screens.

E.B. says THE MUMMY'S MOUTH HAS MISSING
TEETH, AND THEY'RE ALL CLUMPED
TOGETHER AND IT'S ALL GROSS. BUT
THIS MOUTH IS, LIKE, PERFECT.

Marika says BY LOOKING AT THIS RADIOGRAPH
WE CAN DEFINITELY TELL THAT
THIS MOUTH WASN'T AS HEALTHY.

E.B. says DO YOU THINK THE MUMMY'S
TEETH WERE BAD BECAUSE
THAT PERSON WAS OLD?

Marika says I REALLY DOUBT IT. BACK IN
ANCIENT EGYPT, I DON'T THINK
THEY WERE LIVING THAT LONG.

E.B. says INTERESTING…

Next, E.B. is in the toilet flossing while recording a new video.

He says I'M GETTING CLOSER TO SOLV...
I'M GETTING CLOSER TO SOLVING
THIS MYSTERY. IT DOESN'T LOOK
LIKE A WHODUNIT MYSTERY ANYMORE.
HERMIONE'S MUMMY PROBABLY
DIED FROM SOME SORT OF DENTAL
PROBLEM, LIKE THE MUMMY
IN THE MUSEUM. HM...

Meanwhile, Tilly continues to watch a horror film. Now she gets a new call.

Tilly says OH! SILLY TILLY. YOU SHOULD BE
FOCUSING ON REAL MUMMIES!

E.B. says WHAT'S SILLY?

Tilly says OH, NOTHING DEAR.
I WAS JUST DOING SOME RESEARCH.

E.B. says I'M STARTING TO THINK
THAT ANCIENT EGYPTIAN MUMMIES
DIDN'T TAKE CARE OF THEIR TEETH
LIKE WE DO. I'M PRETTY SURE
THEY DIDN'T BRUSH OR FLOSS.

Tilly says I DID SOME RESEARCH
ON THAT. LET'S SEE. HERE IT IS.
LET'S CONFERENCE IN KYLA.

Now, Tilly’s screen has the horror film in the background and E.B. and Kyla appear in small windows in the front.

The sound of the movie is still on. E.B. hears it.

He says KYLA DOESN'T SOUND TOO GOOD.

Tilly says OH, IT'S JUST
SOME RESEARCH I WAS DOING.
HERE SHE IS. HEY, KYLA!

Tilly mutes the film.

Kyla says HEY, GUYS.

E.B. says OH, YOU SOUND
A LOT BETTER NOW KYLA.

Kyla says WHAT ARE YOU TALKING ABOUT?

Tilly says NEVER MIND. I HAVE SOME
INFORMATION FOR YOU BOTH. IT
TURNS OUT THE ANCIENT EGYPTIANS
HAD FAIRLY GOOD ORAL HYGIENE
HABITS. THEY CLEANED THEIR TEETH
WITH SOMETHING CALLED A NEEM
STICK, WHICH IS SORT OF LIKE A
TOOTH BRUSH.

The screen shows a picture of a stick with a small brush in the tip.

Tilly continues SO IF THE ANCIENT
EGYPTIANS WERE REGULARLY
BRUSHING OR STICKING OR
WHATEVER... THEN SOMETHING ELSE
BESIDES NEGLECT MUST HAVE BEEN
RESPONSIBLE FOR CAUSING
THE MUMMY'S BAD TEETH.

Kyla says WELL, MY DENTIST SAYS THAT EATING A LOT OF SWEETS
IS BAD FOR YOUR TEETH.

Tilly says EXACTLY MY THOUGHT. SO
I RESEARCHED WHICH SWEETS THEY
HAD. THE ANCIENT EGYPTIANS HAD
HONEY, AND THEY ALSO HAD THIS.

Now the screen shows some honey followed by an antique instrument that looks like a leaf.


Tilly continues
THIS IS THE HIEROGLYPHIC SYMBOL
FOR CAROB, WHICH IS A BEAN THAT
TASTES SORT OF LIKE CHOCOLATE.
AND YOU KNOW, IF I WAS
AN ANCIENT EGYPTIAN AND
THERE WAS NO CHOCOLATE,
I THINK I'D EAT CAROB.

Kyla says I'LL SEE WHAT I CAN
FIND OUT ABOUT THAT HERE.
COULD ANCIENT EGYPTIANS HAVE
EATEN A LOT OF CANDY THAT
CAUSED THEIR TEETH TO DECAY?

Back in the lab, Kyla has some more questions for Andrew.

Andrew says WELL CERTAINLY
COMPARED TO THE AMOUNT OF CANDY
WE'VE GOT IN STORES AND THAT
YOU PROBABLY EAT, THEY WOULDN'T
HAVE HAD VERY MUCH.

Kyla says SO THEN, YOU DON'T THINK
THAT SWEETS COULD HAVE BEEN
WHAT KILLED LADY HUDSON
OR OUR MYSTERY MUMMY?

Andrew says WHAT DO SWEETS DO TO TEETH?

Kyla says THEY GIVE YOU CAVITIES. HER
FAKE TOOTH DID HAVE A CAVITY.

Andrew says AH. WHAT DO YOU REMEMBER
ABOUT LADY HUDSON'S TEETH?

Kyla says THEY DEFINITELY
LOOKED WORN DOWN.

Andrew says MM-HM.

Kyla says AND SO DID THE REPLICA
TOOTH IN OUR MYSTERY FILE.


Andrew says AH.

Kyla says I'VE NEVER HEARD OF
SWEETS DOING THAT TO TEETH. BUT
MAYBE E.B.'S DENTIST WILL KNOW.

Andrew says MAYBE.

Kyla calls E.B.

E.B. says HEY, KYLA.

Kyla says I'M NOT SURE SWEETS
ARE THE PROBLEM. CAN YOU ASK
YOUR DENTIST IF SOMETHING ELSE
COULD HAVE DAMAGED THEIR TEETH?

E.B. says SURE.

The call ends and Marika explains some new stuff to E.B.

Marika says WELL, SHE'S RIGHT.

E.B. says REALLY?

Marika says LOOK AT THE
X-RAYS. IT'S ALL WORN DOWN.
SO WHAT YOU HAVE TO THINK OF
IS MAYBE SOME FOOD THAT THE
MUMMY COULD HAVE EATEN THAT
COULD GRIND THE TEETH DOWN.

E.B. says HEY, TILLY, CAN YOU LOOK
FOR SOME FOODS THAT ANCIENT
EGYPTIANS ATE THAT MAYBE MIGHT
HAVE DAMAGED THEIR TEETH?

Tilly says SURE THING! LET'S
SEE...

Tilly’s compute screen shows the picture of old paintings depicting food like fish, eggs and some animals.

Tilly continues
FOOD ANCIENT EGYPTIANS
ATE THAT WORE DOWN THEIR TEETH.
MM... MAKES ME HUNGRY.
WHICH ONE OF YOU INNOCENT
LOOKING FOODS IS THE CULPRIT?

Tilly seems a bit distracted. She takes a bite of the cookie she was assigned as clue.

Next she says OW! OH, THAT ALMOST
BROKE MY TOOTH.
HEY, COULD THIS OLD BISCUIT
BE A CLUE AFTER ALL?

Tilly calls Kyla.

Kyla says HEY, TILLY.

Tilly says KYLA! I HAVE A THEORY.
FIND OUT IF THE ANCIENT
EGYPTIANS ATE BISCUITS.

Kyla says BISCUITS? SERIOUSLY?
THIS MAY SOUND SORT OF WEIRD,
BUT DID THE ANCIENT EGYPTIANS
EVER EAT BISCUITS?

Andrew says THAT'S NOT A WEIRD QUESTION AT
ALL. WE'RE ALWAYS INTERESTED IN
HOW PEOPLE FROM THE PAST LIVED,
AND WHAT THEY ATE. NOW,
I DON'T KNOW ABOUT BISCUITS IN
PARTICULAR BUT THEY CERTAINLY
ATE A LOT OF BREAD.
WE'VE GOT SOME IMAGES
FOR YOU HERE.

Kyla says OKAY.

Andrew takes Kyla to his desk and shows a few pictures in a computer screen.

He says WHAT DO YOU SEE IN THIS IMAGE?

Kyla says IT'S WHEAT.

The picture shows an old representation of an Egyptian holding wheat.

Andrew says UH-HUH.
AND WHAT ABOUT THIS ONE?

Kyla says EVEN MORE WHEAT.
BUT I STILL DON'T SEE
ANYTHING THAT HAS ANYTHING
TO DO WITH BISCUITS,
OR ANYTHING ELSE BREAD-Y.

New images of ancient Egypt scenes show men working in fields and collecting wheat.

Andrew explains
NOT YET, BUT IT'S A PROCESS.
SO HERE, THEY'RE HARVESTING THE
WHEAT. AND THEN IN THIS IMAGE
THEY'RE WINNOWING THE WHEAT.
SO THEY'RE SEPARATING THE SEEDS
FROM WHAT'S CALLED THE CHAFF.
AND THEN WHAT DO YOU THINK
THEY'RE DOING IN THIS IMAGE.

Kyla says MAKING THE FLOUR.

Now the screen shows a small ancient sculpture of a person making flour.

Andrew confirms and continues
THEY'RE MAKING THE FLOUR.
THIS IS MADE OUT OF STONE.
THIS IS MADE OUT OF STONE. AND
SO THEY'RE GRINDING THE FLOUR.
THEY'RE CRUSHING THE SEEDS TO
MAKE THE FLOUR. SO YOU'VE GOT
ROCK ON ROCK WITH WHEAT IN THE
MIDDLE. WHAT DO YOU THINK THAT'S
GOING TO DO TO YOUR FLOUR?

Kyla says IT'S GOING TO HAVE
TINY ROCKS IN IT?


Andrew says ABSOLUTELY.

Kyla says THAT'S NOT GOOD.

Andrew continues
SO WHEN YOU MAKE YOUR BREAD
OR YOUR BISCUIT, AND YOU START
TO EAT THAT, WHAT DO YOU THINK
THOSE LITTLE BITS OF STONE ARE
GOING TO DO TO YOUR TEETH?

Kyla says IT DAMAGES THEM.

Andrew says ABSOLUTELY. IT'S GOING
TO WEAR THEM DOWN. BIG TIME.

Kyla says HM. THAT COULD BE
THE ANSWER TO OUR MYSTERY.

Andrew says IT MAY BE.

Kyla says IS THERE A WAY
TO KNOW FOR SURE?

Andrew says WHY DON'T
WE DO A LITTLE EXPERIMENT?

Now a clip shows Andrew and Kyla working on their experiment.

Kyla describes each steps.

She says ANDREW SHOWED ME HOW
TO GRIND WHEAT WITH A MORTAR AND
PESTLE MADE OF STONE, TO SHOW
HOW THE ANCIENT EGYPTIANS
WOULD HAVE DONE IT.
AFTER A WHILE, THE GRAINS
TURN INTO FLOUR.

Andrew says SO WHEN YOU'VE GOT ENOUGH
GROUND UP THERE, WE CAN TEST IT
TO SEE IF THERE ARE ROCKS IN IT.

Kyla says YOU WANT ME TO EAT
BREAD WITH ROCKS?

Andrew says NO. WAIT...
THERE'S ANOTHER WAY.

Kyla says TO FIND OUT IF
THIS FLOUR HAS ROCKS IN IT,
I FORTUNATELY DO NOT HAVE TO
BITE DOWN ON IT. I JUST NEED
TO POUR IT INTO THIS WATER.

Kyla made some flour. Now she pours some of it in a different container with water.

Andrew says A LITTLE BIT MORE.

Kyla says OH, I CAN CLEARLY SEE
THE SEPARATION NOW.

The transparent container lets Kyla see how the separation occurs inside.

Andrew says YEAH. WHAT DO YOU THINK
YOU SEE ON THE BOTTOM, THERE?

Kyla says ROCKS. ALL THE HEAVY STUFF
SUNK TO THE BOTTOM. AND THE
LIGHT STUFF STAYED AT THE TOP.

Andrew says EXACTLY.

Kyla says WOW. SO IF I WOULD HAVE
GONE AHEAD AND MADE BREAD
WITH THIS FLOUR, IT WOULD
HAVE DAMAGED MY TEETH?

Andrew says ABSOLUTELY.
ESPECIALLY OVER TIME. IF YOU EAT
THIS STUFF DAY IN, DAY OUT...
IT WILL GRIND YOUR TEETH DOWN.
DEFINITELY.

Kyla says BUT WAIT! THERE'S
SOMETHING ELSE. EGYPT IS
IN THE DESERT, SO I BET A LOT
OF SAND GOT INTO THEIR FOOD.

A picture shows a desert scene with people walking next to a tent followed by workers next to one of the pyramids.

Andrew says EXACTLY. SO YOU'VE
GOT THE STUFF IN YOUR BREAD,
BUT YOU'VE ALSO GOT SAND JUST
EVERYWHERE AROUND IN THE AIR.

Kyla says SO THE SAND AND THE ROCKS IN
THE BREAD COULD HAVE DAMAGED
PEOPLE'S TEETH OVER TIME,
LEADING TO INFECTION AND GUM
DISEASE. AND MAYBE EVEN DEATH!

Andrew says YEAH, ABSOLUTELY.
IF THEY GOT A BAD INFECTION
THEY HAD NO WAY TO CONTROL IT.
THAT COULD KILL THEM.


Kyla says OH... DEATH BY BISCUIT.

Andrew giggles.

Kyla says THANK YOU SO MUCH FOR
HELPING ME, DR. NELSON.

Andrew says IT'S BEEN MY PLEASURE.

Fast images show small pieces of the different objects studies by Kyla in Andrew’s lab.

Next, the team reunites back home.

Kyla says SO IT TURNS OUT THAT
BISCUIT WAS THE CLUE AFTER ALL.
THAT STALE OLD COOKIE WAS THE
KEY TO THE "CAUSE OF DEATH!"

Tilly says I DID NOT SEE THAT COMING.
I THOUGHT FOR SURE IT WAS
ONE OF HERMIONE'S OLD SNACKS.

E.B. deepens his voice and says OH, KILLER BISCUIT! OH!

Kyla says THAT LINEN FILLING WAS
COOL, TOO. BUT LUCKILY DENTISTRY
HAS COME A LONG WAY SINCE THEN.

Fast clips recap the images of the investigations performed by the kids during the day.

Tilly says I GOT SOME CAROB SNACKS
TO HELP CELEBRATE SOLVING
THIS MYSTERY. WHO'S UP
FOR TREATS AND A MUMMY MOVIE?

Timmy offers the kids a few cookies.

E.B. says YES! I LOVE THEM!

Kyla says I LOVE SCARY MOVIES!

They all cheer and meet in front of the computer screen.

Tilly says HERE! SCOOT IN!
IT'S SUPER SCARY. OKAY,
ARE YOU READY? HERE WE GO. OH,
THIS IS A REALLY GOOD PART...

E.B. says OH! AUNT TILLY!

Kyla says WATCH OUT!

Tilly looks like she’s focused on the film. Accidentally, she picks up the clue biscuit but the kids warn her on time.

Tilly says OH! I ALMOST DID IT
AGAIN! AWAY WITH YOU.
OH, THE KNIFE IS COMING!

Kyla says OH, I CAN'T WATCH!

All say MYSTERY SOLVED! POSTING
TO THE MYSTERY FILES WEBSITE.

A new video shows the pictures and files recorded and gathered during the episode saved in a box, on a website.

The end credits roll.

An Apartment 11 Production. In association with TVO Kids.

Executive Producers, Patricia Ellington and Marney Malabar.

TVO Kids and Apartment 11 Productions Logos appear.

Florence Productions Incorporated, 2015.