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Bestselling author Tony Abbott's epic new middle grade series, the Copernicus Legacy, begins with The Forbidden Stone, a thrilling adventure packed with puzzles, intrigue, and action. Fans of Rick Riordan and Ridley Pearson will love this first book in an exciting series that takes the reader all over the globe in a race to find pieces of a mysterious hidden past -- before it's too late.

Wade, Lily, Darrell, and Becca fly from Texas to Germany for the funeral of an old family friend. But instead of just paying their respects, they wind up on a dangerous, mind-blowing quest to unlock an ancient, guarded secret that could destroy the fate of the world.

Supports the Common Core State Standards

This isn't just a school vacation -- it's a race against time for the fate of the world.

• Puzzles and Codes: Wade, Lily, Darrell, and Becca must decipher cryptic messages and antique star charts to follow a trail of clues left by a society of Guardians.

• Action-Packed Adventure: From a tense funeral in Germany to a break-in at a secret tomb, the four friends are always one step ahead of a dangerous enemy.

• Quest for Ancient Relics: The team is on a mission to find the twelve hidden parts of a mysterious and powerful device built by Copernicus himself.

• Found Family Dynamics: Four very different kids -- a scientist, a musician, a tech wiz, and a bookworm -- must learn to trust each other to save the world.

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Price Summary

  • We started tracking this book on November 13, 2013.
  • This book was $8.89 when we started tracking it.
  • The price of this book has changed 144 times in the past 4,512 days.
  • The current price of this book is $11.49 last checked 14 hours ago.
  • This lowest price this book has been offered at in the past six months is $1.99.
  • This lowest price this book has been offered at in the past year is $0.99.
  • The lowest price to date was $0.99 last reached on April 7, 2025.
  • This book has been $0.99 5 times since we started tracking it.
  • The highest price to date was $13.99 last reached on August 31, 2025.
  • This book has been $13.99 one time since we started tracking it.

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Additional Info

  • Publication Date: January 7, 2014
  • Text-to-Speech: Disabled
  • Lending: Disabled
  • Print Length: 433 Pages
  • File Size: 40 KB

We last verified the price of this book about 14 hours ago. At that time, the price was $11.49. This price is subject to change. The price displayed on the Amazon.com website at the time of purchase is the price you will pay for this book. Please confirm the price before making any purchases.