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The back-and-forth flashback format was very cool, and very effective. I would have liked more of an ending. And I realize it's basically a memoir as written, but it could have been a stronger book if it wouldhave captured more of the other sister's perspective, either as a co-author or as a loosely-inspired-by-real-events piece of fiction. As it is, I really want to know what she and her sister are like now, as adults.