Valiant (Modern Faerie Tales Series #2)

When seventeen-year-old Valerie Russell runs away to New York City, she's trying to escape a life that has utterly betrayed her. Sporting a new identity, she takes up with a gang of squatters who live in the city's labyrinthine subway system.
But there's something eerily beguiling about Val's new friends. Impulsive Lolli talks of monsters in the subway tunnels they call home and shoots up a shimmery amber-colored powder that makes the shadows around her dance. Severe Luis claims he can make...