39 Clues, Series of 10 Hardcover Books, plus Clue Cards, by Rick Riordan

Read The 39 Clues books to follow Amy Cahill and her brother Dan as they travel the world to hunt for Clues. Each of the 10 books comes with 6 game cards that reveal important information about the Cahills and unlock a Clue!
All 10 books are in excellent condition. Cared for in a smoke-free home. .