The 39 Clues: Doublecross: Mission Titanic by Jude Watson

This book is in the mystery and adventure genre. 

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Amy and Dan Cahill are no longer the heads of the Cahill family. They wanted a life without all of the stress, and they got their wish. Ian Kabra, Lucian, has know taken over at just seventeen years old. He has connections to the most important and powerful people in the world. Ian has been waiting for this for years.

And he has already screwed up.

An old member of the Cahill family has invaded the organization, calling himself the Outcast. The mysterious man has given Ian a test. Four of the world's greatest disasters are to be re-created, and Ian has to stop them. If he doesn't stop them in time, thousands of people will die. But Ian can't do this alone. Back from their vacation early, Amy and Dan have come to help.

What I like about this book is that it had a lot of humor that a lot of the other books didn't have.

I don't really have anything that I didn't like about this book.

I give this book 5 out of 5 stars.