マーセデス・ラッキー

Take a Thief: A Novel of Valdemar is a 2001 young-adult novel about Skif, an orphaned pickpocket, who finds a magical horse. Written by Mercedes Lackey, the novel is the third in the Heralds of Valdemar series, and introduces Skif, who appears in the subsequent Valdemar book Arrows of the Queen.

The Black Gryphon is the first novel in the chronological timeline of the Valdemar Saga by author Mercedes Lackey, although not published until 1994.