The Virgin and the Scorpion - The Apprentice Assassin, #1

Mandy Clark is thirteen years old. She is the unwanted child of her abusive alcoholic and drug addict mother. She spends most nights locked out of her house and sleeps in a derelict skateboard park. She desperately wants to make a better life for herself, but the shadow of her mother is difficult to shake off. One cold and rainy night she meets Amy, a mysterious, tall, beautiful and rich stranger who changes her multiple personas as often as her underwear. They start a unlikely friendship, each leaning on the other for the support and companionship that is missing from their own lives. Amy has more secrets behind her aliases than she cares to share, but inevitably their two worlds collide...