First published 2010
For five hundred years, the Cahills have shaped world events from the shadows. Their relentless search for 39 Clues connects to history's greatest mysteries: the Hope diamond's curse, the race to conquer Everest, Harry Houdini's strange death. Now their classified records lie open. This comprehensive dossier exposes each branch of the family tree. The Lucians, Ekaterinas, Tomas, and Janus factions guard their own secrets. The mysterious Madrigals remain the most elusive of all. Complete agent profiles reveal the Man in Black's true identity. Detailed reports document the catastrophic fire that destroyed the original Cahill unity. Investigation files reconstruct Hope and Arthur Cahill's final night. Secret base locations and hidden strategies fill every page. The hunt for ultimate power continues, but now readers hold the same intelligence that drives the world's most dangerous family.
Genres: adventure, mystery, thriller, alternate-history
Vibes: dark, suspenseful, thought-provoking
Tropes: found-family, secret-identity
Setting: Cahill, Hope Diamond
Period: 500 Years, Final Night
189 pages · Hardcover · Scholastic Inc.