First Prize: World Domination

Main characters: Amy and Dan Cahill

39 clues is a great series, full of adventure and mysteries. It has a total of 12 books in the series with the first one being "The Maze of Bones" written by Rick Riordan, writer of the Percy Jackson series.

This book sends 2 orphans on a wild hunt for an unknown treasure that promises utmost power, "First Prize: World Domination". Selected members of the "Cahill" family are given the first clue which then sets them off on their quest, there can only be one winner. Each team works separately and the team of the two main characters "Amy and Dan Cahill" are advised not to trust anyone as all members of the Cahill family are known for their cunning behavior, betrayal, and their desire to win.

It begins with their grandmother's funeral where they are either offered a check of million dollars or a clue that does not promise prosperity. Amy and Dan are hesitant, they're orphans living with their aunt, they might need the money. But Amy and Dan enter because they think this is what their grandmother would like them to do, find the 39 clues and the secret of the Cahill family.

In this journey they find themselves traveling to countries all over the globe for the clues, from Philadelphia to Paris to Austria. They constantly face life or death situations; in explosions, traps, betrayals, and once are almost buried alive. They manage to survive all this and seem to have not much problem figuring out the clues with Dan's intelligence and Amy's understanding.

At the end of the book, they prepare to leave for Vienna, Austria; following the journey of a historical figure, Wolfgang Amadeus Mozart. The search for the clues continues...