"The boys exposed a Russian spy and now they're in danger."

"We've got the spy monkey and his operators!"

"Listen, the boys disgraced the statue of our esteemed leader and were arrested. You'd better stop asking about them before you're arrested too!"

Dudi and Udi find themselves caught up in an incredibly strange story. Champ is kidnapped by a foreign spy and when they try to rescue him, they end up in a distant enemy land. Things only go from bad to worse when they are imprisoned in a North Korean prison camp.

This book is the first in the new Chidudi series, which combines the magic of a suspenseful comic with the thrill of a book full of challenging riddles. The Chidudi series promises an enjoyable read and the satisfaction of mind-bending puzzles, mathematical riddles, trivia questions, and visual perception challenges.

Chidudi is a brain sharpening innovation you won't want to put down!