Genuine Fraud by E. Lockhart

Imogen is a runaway heiress, an orphan, a cook and a cheat. Jule is a fighter, a social chameleon and an athlete. An intense friendship. A disappearance. A murder, or maybe two. A bad romance, or maybe three. Blunt objects, disguises, blood and chocolate. The American dream, superheroes, spies and villains. A girl who refuses to give people what they want from her. A girl who refuses to be the person she once was.