Gordon Korman

The race to become the most powerful people in the world has officially begun, and orphans Amy and Dan Cahill are already running for their lives. Hot on the trail of the second of thirty-nine hidden clues, the siblings find themselves speeding across Europe on a train, desperately trying to stay one step ahead of their ruthless, backstabbing relatives. Their latest historical puzzle leads them deep into the life and music of a legendary composer, but uncovering the truth is proving to be incredibly dangerous. Suddenly, Amy and Dan are prime suspects in a high-profile hotel burglary, dodging local police and navigating treacherous new cities. From high-speed boat chases through winding canals to outrunning an angry mob, the stakes have never been higher. With their enemies closing in and traps waiting at every turn, Amy and Dan must rely on their wits and each other to survive. This fast-paced, globe-trotting adventure is packed with historical secrets, thrilling action, and non-stop suspense.