The 7 Sins and the Keepers Kids.......

What would you do if you had to keep half of who you are a secret from your friends and family?
Skylar knightly has to do just that. but when Skylar and his younger twin sister Alice get taken away from the town they love and sometimes hate so much and get stuck on a Island in the middle of no where, Will Skylar be able to keep that Half of him still a secret or will he be outed? Will Alice be able to deal with it or not? and what secret is she hiding? And what the Hell is a Soul-Finder??