" Look, it's easy to outsmart a werewolf or a vampire," Jace said. " They're no smarter than anyone else. But faeries live for hundreds of years and they're as cunning as snakes. They can't lie, but they love to engage in creative truth-telling. They'll find out whatever it is you want most in the world and give it to you—with a sting in the tail of the gift that will make you regret you ever wanted it in the first place." He sighed. " They're not really about helping people. More about harm disguised as help. "