The Boy with the demon blood the girl with the Angel Grace

Brooklynn Winchester is the twin sister of Sam Winchester and the only daughter of John Winchester. She wasn't that close with her father nor was she allowed to hunt a lot for a reason. That reason being she used to look like her mother. Mary Winchester who she never got to meet or know since Mary died when Brooke was 6 months old. What happens when something forces her out of her settle down plans back into hunting with her brothers? What happens when she holds a deep dark secret from Dean that only Sam knows? Come read and find out.