You Wish — Christina McMullen

After a scuffle with his sister smashes the bottle he found at the antique store, Jem becomes the not-so-proud owner of a wisecracking djinn who promises to make his every dream come true. The cost? Nothing less than his soul. But Jem is no ordinary agent and falling to Chaos means bringing about the end of the world. Meanwhile, Desmond discovers that a crack in the barrier between realms has opened below the site of the old paper mill and grows wider each day. The solution to both problems may lie with Eller Raglund, a powerful, yet antisocial mystic. But before he can help, Eller must reconcile his own paradoxical problems. One way or another, it seems Blackbird is going to become the battleground in the final fight for Order. The question is, how soon? And more importantly, will the gang survive long enough to see the grand opening of Big Royal Burger?