Bestie Knows: Why Are Farts Soooo Loud?: A Detective Mystery Activity Book for Kids 9-13 with 29 Cipher Puzzles and Real Body Science. Secret Code Activity Book for Kids 8–12 (PDF)

Why are some farts so loud you can hear them in the next room? Why are some silent? Same butt. Different fart every time. That is a CASE.

Welcome to Operation: Why Is My Butt So LOUD. A 79-page mystery for kids 9 to 13. Twenty-nine puzzles. One weird-true science reveal based on actual peer-reviewed research from Georgia Tech, who recorded farts from rats to elephants and published a paper called Physics of Flatulence.

YOUR MISSION

Crack 29 ciphers. Build the case. Find the suspect. Close the file in your own handwriting.

INSIDE

- 7 cipher types: Caesar, Atbash, Substitution, Scramble, Acrostic, Word Search, and one real maze

- 6 collectible Brain Sleuth Cards (Rookie Sniffer to Senior Fart Sleuth)

- 6 HI BESTIE curiosity breaks on hiccups, stomach growls, smelly feet, yawn contagion, and more

- Master Case File you fill in

- Decoder Toolbox cheat sheet for when truly stuck

- Real citations at the back

FOR

Kids 9 to 13 who love mystery, science, and body humor. Lefties and righties. Reluctant readers who quit activity books by page 10. Sibling rivals who race each other. Whole families who tear chapters apart and reconvene at the back for the reveal.

Most kids workbooks get quit by page 10. This one is a mystery with cliffhangers. Every cipher is real cryptography. Each body fact is documented.

BESTIE KNOWS is a growing series from Yvanela Publishing. One weird body question per book. Real puzzles. Real research.

Yv Anela writes the Bestie Knows series to help put his two daughters through college. Every book in the catalog exists because of those two kids.

Maybe Bestie Knows.