Windling's Fairy Tale series has produced several excellent fantasy novels inspired by classic fairy tales. This is one of the series's most ambitious efforts, and only a writer as good as Yolen ( Sister Light, Sister Dark ) could bring it off. Yolen takes the story of Briar Rose (commonly known as Sleeping Beauty) and links it to the Holocaust--a far-from-obvious connection that she makes perfectly convincing. Rebecca Berlin, a young woman who has grown up hearing her grandmother Gemma tell an unusual and frightening version of the Sleeping Beauty legend, realizes when Gemma dies that the fairy tale offers one of the very few clues she has to her grandmother's past. To discover the facts behind Gemma's story, Rebecca travels to Poland, the setting for the book's most engrossing scenes and its most interesting, best-developed characters. By interpolating Gemma's vivid and imaginative story into the larger narrative, Yolen has created an engrossing novel. She handles a difficult subject with finesse in a book that should be required reading for anyone who is tempted to dismiss fantasy as a frivolous genre.