The Medusa Plot
Cahills vs. Vespers Book 1
Readers rate it 3.7 (29 on Hardcover)
222 pages · Released Sep 3, 2026 · Scholastic
Content report card
The Medusa Plot parent’s guide: what’s inside
Language
Sexual content
LGBTQ+ themes
Substance use
What it offers
A note for parents
The Medusa Plot is an action-adventure mystery designed for middle-grade readers that combines globe-trotting excitement with puzzle-solving and family bonds. The plot involves kidnapping and threats of danger, but violence is implied rather than graphically depicted, keeping it appropriate for the target audience. The story emphasizes teamwork, quick thinking, and loyalty while maintaining a fast-paced, engaging narrative that rewards problem-solving and perseverance.
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From the publisher
Are you ready to save the world? The bestselling series returns with an adventure spanning 6 explosive books, 2 secret-filled card packs, and a website that places readers right in the action. Thirteen-year-old Dan Cahill and his older sister, Amy, thought they belonged to the world's most powerful family. They thou... Are you ready to save the world? The bestselling series returns with an adventure spanning 6 explosive books, 2 secret-filled card packs, and a website that places readers right in the action. Thirteen-year-old Dan Cahill and his older sister, Amy, thought they belonged to the world's most powerful family. They thought the hunt for 39 Clues leading to the source of that power was over. They even thought they'd won. But Amy and Dan were wrong. One by one, distress calls start coming in from around the globe. Cahills are being kidnapped by a shadowy group known only as the Vespers. Now Amy and Dan have only days to fulfill a bizarre ransom request or their captured friends will start dying. Amy and Dan don't know what the Vespers want or how to stop them. Only one thing is clear. The Vespers are playing to win, and if they get their hands on the Clues . . . the world will be their next hostage.
Shelved under
- Fantasy
- Young Adult
- Adventure
- Fiction
- Science Fiction
- Mystery
- Juvenile Fiction
- Code and cipher stories
- Kidnapping
- Brothers and sisters
- New York Times bestseller
- nyt:series_books=2010-05-01
Books in The 39 Clues: Cahills vs. Vespers (Spin-Off)
Full series in order →
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ISBN 9780545298391 · Scholastic