Only now, much more is at stake than a mere $100 million dollars.

Bixby Timmons has entered the toughest level yet, and if she's to win, not only will she have to embark on a dangerous climb up the Matterhorn, but she'll have to deal with cut-throat competitors who will stop at nothing to see her lose. The deadly traps and puzzles are just an added bonus, and the secrets she uncovers along the way? They're ones she never in a million years would have seen coming.

"Highly recommend this whole series for upper-middlegraders and young teens who love futuristic adventures!" -- Jessica Renwich, author of the Starfell and Lavender Raine series