First published 2013
Amy and Dan Cahill face their most dangerous enemy yet when the shadowy Vesper organization kidnaps seven people close to them, including their grandmother Grace's brother Fiske. The Vespers demand the siblings abandon their search for the 39 Clues and instead hunt down impossible artifacts scattered across the globe. From the stolen Medusa painting to ancient Mayan relics, each mission pulls Amy and Dan deeper into a centuries-old conflict between their family and the ruthless Vespers. As they race through exotic locations and solve deadly puzzles, the young Cahills discover that their enemies have infiltrated every level of society. With each passing day, the hostages face greater peril while Amy and Dan must choose between saving their loved ones and protecting secrets that could reshape the world. The complete collection delivers six full-length novels chronicling this high-stakes battle where trust becomes a luxury the Cahill children cannot afford.
Genres: adventure, mystery, thriller, action
Vibes: fast-paced, suspenseful, thought-provoking
Tropes: enemies-to-lovers, found-family
Setting: Mayan Ruins, Medusa Painting
Period: 21st Century
Hardcover · Scholastic