Rick Riordan is the author of the Percy Jackson novels as well as its many spin-offs, and each book has a reason to be considered one of his best. The first and last books in The 39 Clues series ...

Built around a ripe conceit—wealthy matriarch scatters cryptic clues to a mysterious fortune ... look pretty familiar--a crooked... Rick Riordan, Robert Venditti, Attila Futaki, and Jose ...