Raiders' Ransom by Emily Diamond was just released in the U.S.
Description: From the publisher: 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!
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