A Different Kind of Angel

In this supernatural story, 15 year old Adeline Winchester and her best friend Elizabeth Hail are in a house fire on the same night, they realise their mothers, who died in the fire, died the exact same way. When they rummage through the ruins of Addie's house they notice a safe still intact.
After prying open the safe, inside lays a single, leather bound book. After reading a few pages Addie realises it was her father, Dean Winchester's. As Addie and Lizzie go off to find her father, they discover that Lizzie's father is none other than Deans little brother Sam. After finding their fathers in a local diner the two young girls explain themselves and who they are. After going back with their fathers strange things start happening to the both of them. Supernatural things. They both posses powers, they don't know why however. But when Castiel brings his twin sons into the mix everything changes for the girls. Read 'A Different Kind of Angel' to continue on.