(From the publisher):
Since the day her parents disappeared, Abby Clover has lived with her aunt, her uncle, and a boy named Spike who washed ashore after a storm. Their seaside town conceals many secrets, but Abby knows nothing of them until she meets a mysterious stranger near the beach. He shows Abby and Spike around his lighthouse. And soon he whisks them into a world of hidden caverns, fabulous boats, captive children, and a dangerous quest to find Ice Dust — the source of all magical power.
The stranger is Captain Adam Starlight, and with the Light Witches he's engaged in an epic battle against the Night Witches, who control the only source of Ice Dust. With him, Abby and Spike hurtle through perilous seas, face fearsome monsters, and do battle with an enemy darker and dirtier than they could ever have imagined. Can Abby and her friends recapture the Ice Dust in time to save a fleet of children that have bravely set sail from Abby's home town? On their side they have the Great Mandini, a master of illusion — but the Night Witches have a terrible new weapon.
Original title: The Witch Trade
Genre: Fiction→ Children & Young Adult→ Fantasy