Winner of the inaugural Chicken House/London Times Children's Fiction Competition, which called it "a funny, clever, towering adventure."

It's the 22nd century and, because of climate change, much of England is underwater. Poor Lilly is out fishing with her trusty sea-cat when greedy raiders pillage the town--and kidnap the prime minister's daughter. Her village blamed, Lilly decides to find the girl. Off she sails, in secret. And with a ransom: a mysterious talking jewel. "If I save his daughter," Lilly reasons, "the prime minister's sure to reward me." Little does Lilly know that it will take more than grit to outwit the tricky, treacherous piratical tribes!