From School Library Journal Grade 6-8--At a sleepover, Kira, 15, agrees to let her friends hypnotize her for the fun of it. Instead of the expected revelation of a secret crush, her friends hear a child's buried memory of fleeing from danger with her mother and speaking in a language none of them understands. Kira's assumptions about her life in their small Ohio town are challenged, and her reticent, eccentric mother is frightened rather than reassuring when confronted with her daughter's questions. Then she disappears, and a woman shows up claiming to be Kira's benevolent Aunt Memory from a community called Crythe, where memories are valued above all else. Aunt Memory claims that the woman Kira thinks of as her mother is being held hostage and that only Kira can save her. Thus ensues a race across the continent involving Crythian political intrigue, deception, kidnapping, and blackmail. Of course, nothing is as it seems, and there are enough plot twists to satisfy Haddix's loyal readers. The plot-driven narrative moves at such a brisk pace that only by the end of the story do readers have time to ponder the unresolved questions concerning the power and role of memory in our lives.