The stolen heir : a novel of Elfhame

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But in the icy north, Lady Nore of the Court of Teeth has reclaimed the Ice Needle Citadel. There, she is using an ancient relic to create monsters of stick and snow who will do her bidding and exact her revenge. Suren, child queen of the Court of Teeth, and the one person with power over her mother, Lady Nore, fled to the human world.[Bokinfo].