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The 39 Clues: The Black Book of Buried Secrets

The 39 Clues: The Black Book of Buried Secrets

By Rick Riordan   

Scholastic Inc | ISBN 9780545285049 Hardcover
192 Pages | 5.29" x 7.71" | Ages 8 to 12

This fantastic companion book of the bestselling The 39 Clues series includes:
  • Bios of the branch leadership
  • Interviews with the branch's top agents
  • The location of the branch's clues
  • The complete branch history
  • The branch's preferred codes
  • Maps of the branch strongholds
  • Security protocols (the branch's spycraft)


Check out more books in this series!