The 39 Clues: Cahills vs Vespers Series is the second story arc in The 39 Clues franchise, sequel to the original series (The Clue Hunt). This fantastic young-adult series features 6 adventure books written by bestseller authors—most of the authors also wrote the novels in the original series.
Amy and Dan Cahill plan to return to normal life after the fierce clue hunt competition. However, new and vicious enemy has arrived. The Vespers have kidnapped and taken hostage several members of the Cahill family. To save their kidnapped relatives, Dan and Amy have to follow orders from the Vespers, which is to perform some of the biggest criminal actions in history. Later on, Amy and Dan reveal the real plan of the Vespers is even more deadly than just kidnapping the Cahills. It is an evil plan that might destroy the world.
Sequel to this series is The 39 Clues: Unstoppable. The 3rd story arc in the franchise.
Cover and Details of The 39 Clues: Cahills vs Vespers Series
Summary of the Series
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 they were wrong. A powerful new enemy, the Vespers, have emerged from the shadows, plunging Dan and Amy on a dangerous journey that will take them from Rome to the ancient city of Timbuktu. If Dan and Amy don’t stop the Vespers in time…the whole world will pay.
Reviews of Cahills vs Vespers Series
“One blazing success.” —The Huffington Post
“An interactive mystery…it’s more than just a reading adventure.” —Boys’ Life
“This is a multi-media adventure where you also search for clues-in books, trading cards and online. Get searching!” —Girls’ Life