Amy and Dan cross the oceans on the trail of a famous aviator, but they find more than they're looking for. Their enemies are becoming more vicious, and the truths they discover more crushing than ever.

After seven members of their family are kidnapped by an organization called the Vespers, Dan and Amy Cahill must race against time to track down an ancient map to pay as ransom to bring the hostages home.

A clue found in Japan has Amy and Dan jetting off to Egypt to find out just what's behind the fierce rivalry between the Tomas and Ekaterina branches of the Cahill family. Was a clue stolen from the Tomas branch? Where is it now? And most important, can Amy and Dan get their hands on it before their rivals do?

March and Jules are teenage twins, following in their father's footsteps as jewel thieves, but when their latest job goes wrong they end up with one jewel, a sapphire called the Morning Star, one of three cursed jewels--and the only way they can break the curse is to elude the FBI, Interpol, and a gang of international criminals, find the other two jewels, and reunite them.