7 Books Found

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"a mother was murdered. she had at least two daughters, claire and Nikki. I think Claire stayed around in their town but Nikki went away and then came back after their mother was murdered. There's another character named Bob, who might be the cop in charge? they were all at their mother's house, where she was murdered, and they are trying to figure out who did it. i think maybe the maintenance man did it? The title of the book has "mom" or "Mother" in it"