Two girls separated at birth not knowing about the other. Each girl has a mark on their wrist. It glows and burns in times of danger until they either pass out from crying because of the pain or until they find each other and take on the danger.

Yay or nay?

Oh and this one is different than my others on here since you get to name the book and characters. The one with the best name for the book and characters will get a shout out in the book. Good enough prize?