Stone Nathan Stone 
Pandora’s Box (Book 1 of the Sin Series) [EPUB ebook] 

it all starts when seven children are saved from the evil organization Pandora’s Box, who sought to experiment on them and use them as weapons. now, they find themselves in a new home surrounded by experiment survivors just like them. but is this new home any better than the one they left? just what dark secrets lie in the pits of their new school, Tartarus.