Find the clues in the photographs for these three mysteries: Whatever happened to Porfessor Potts?, Who stole the black diamond? and Where is the pirates treasure?

This combined volume contains three titles from the Usborne Puzzle Adventures series: The Incredible Dinosaur Expedition, The Intergalactic Bus Trip and Time Train to Ancient Rome.

In order to discover who murdered the man in seat number thirteen, the reader must solve a series of puzzles.

Readers follow a trail of clues on each page in an attempt to find Professor Potts, who is missing. Includes helpful hints and answers at the back of the book.

“Lovers who surmount the odds have always been intense emotional fodder, but rarely have we seen a story like Birthday...true and raw, haunting and undeniable.” —The New York Times Book Review Two best friends. A shared birthday. Six years... ERIC: There was the day we were born. There was the minute Morgan and I decided we were best friends for life. The years where we stuck by each other’s side—as Morgan’s mom died, as he moved across town, as I joined the football team, as my parents started fighting. But sometimes I worry that Morgan and I won’t be best friends forever. That there’ll be a day, a minute, a second, where it all falls apart and there’s no turning back the clock. MORGAN: I know that every birthday should feel like a new beginning, but I’m trapped in this mixed-up body, in this wrong life, in Nowheresville, Tennessee, on repeat. With a dad who cares about his football team more than me, a mom I miss more than anything, and a best friend who can never know my biggest secret. Maybe one day I’ll be ready to become the person I am inside. To become her. To tell the world. To tell Eric. But when? Six years of birthdays reveal Eric and Morgan’s destiny as they come together, drift apart, fall in love, and discover who they’re meant to be—and if they’re meant to be together. From the award-winning author of If I Was Your Girl, Meredith Russo, comes a heart-wrenching and universal story of identity, first love, and fate. “Beautifully written, Birthday is an altogether singular contribution to the gradually growing body of transgender literature and, indeed, to mainstream literature, as well.” —ALA Booklist, starred review

One of an action packed series of mystery and adventure stories interwoven with plenty of puzzles to solve, this book gives extra clues as well as complete answers at the back of the book.