Author: Haddix, Margaret Peterson (Keywords)

Throughout the hunt for the '39 Clues', Amy and Dan Cahill have uncovered history's greatest mysteries and their family's deadliest secrets. But are they ready to face the truth about the Cahills and the key to their power?

cecilia knows that she is not just another peasant girl; she is actually the true princess, in hiding until the evil forces that killed her parents are vanquished. A commoner named Desmia is on the throne as a decoy. As she gets older, Cecilia knows that it is time to take charge.

Jonah & Katherine are still reeling from the traumatic events of 'Sabotaged' when they are hurtled through time again, to 1611, moments before a mutiny on Henry Hudson's ship in the icy waters of James Bay. As they struggle to survive the brutal conditions aboard the ship, Jonah & Katherine begin...