Sixteen-year-old Finley Jayne and her "straynge band of mysfits" have journeyed from London to America to rescue their friend Jasper, hauled off by bounty hunters. But Jasper is in the clutches of a devious former friend demanding a trade—the dangerous device Jasper stole from him…for the life of the girl Jasper loves.

One false move from Jasper and the strange clockwork collar around Mei's neck tightens. And tightens.

From the rough streets of lower Manhattan to elegant Fifth Avenue, the motley crew of teens with supernatural abilities is on Jasper's elusive trail. And they're about to discover how far they'll go for friendship.

More than ever, Finley Jayne will rely on powerful English duke Griffin King to balance her dark magic with her good side. Yet Griffin is at war with himself over his secret attraction to Finley…and will risk his life and reputation to save her. Sam, more machine than man, finds his moody heart tested by Irish lass Emily—whose own special abilities are no match for the darkness she discovers on the streets.

Now, to help those she's come to care for so deeply, Finley Jayne must infiltrate a criminal gang. Only problem is, she might like the dark side a little too much….