Blackbird

Fifteen year old Lark Castillo has coped with life's problems with two things: Music and everything geeky. She struggles with trust issues and the scars of her recent past.
Lark has been living with her grandmother and twin sister in a normal setting, but she has been haunted by paranoia. She has been beaten, almost raped, and witnessed murder.One person she meets changes her perspective of life.

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Ah gosh I really suck at this summary thing. I made it sound horribly boring but try to read it, maybe. Thanks and sorry!