"I think it's probably safe to say, given when you should have landed, that you're...um..." "Tell me!" "I think, right now, you're the king of England."

Thirteen-year-olds Jonah and Chip are reeling from the news that they're both missing children from history, kidnapped from their proper time period. Before they can fully absorb this revelation, a time purist named JB zaps Chip and another boy, Alex, back to the fifteenth century, where they supposedly belong. Determined not to lose their friends, Jonah and his sister, Katherine, grab Chip's arms just as he's being sent away. The result? Jonah and Katherine also end up in the fifteenth century, where they decidedly do not belong. Chip's true identity is Edward V, king of England, and Alex is his younger brother, Richard, Duke of York. But Chip is convinced that his uncle, Richard of Gloucester, plans to kill them and seize the throne for himself. JB promises that if the kids can "fix time," he will allow them to return to the present day. But how can they possibly return home safely when history claims that Chip and Alex were murdered? In a riveting tale that climaxes on the battlefield at Bosworth, master storyteller Margaret Peterson Haddix brings readers back in time to an unforgettable moment in history and plunges them into the adventure of a lifetime.