Seventeen years in the New York foster care system will teach a girl exactly two things: nobody is coming to save you, and a sharp, sarcastic mouth is the best armor money can’t buy. For Sailor Marie, survival has always been a solo calculation. She didn't need parents, she didn't need pity, and she certainly didn't need friends. Her raw, uncalibrated knack for engineering and mathematics was supposed to be her ticket out—a hard-earned scholarship to the prestigious Midtown School of Science and Technology, a quiet corner in the robotics lab, and a straight line to graduation.But lately, her mind is turning into a cage.It starts with a dull throb behind her temples.