#1 Amazon bestselling authors Adam Dark & Matthew Thrush bring you the first twisted tale from the Oakwood Valley School for Boys where the legend of the Knock Knock Man was born.
For the boys at Oakwood Valley, adoption is not an option. The last boy who tried to leave is buried behind the shed. And the one up for it next is the master's favorite. You do not want to be his favorite.
But Bobby's ill fate is only the beginning. There's something worse living inside the walls at Oakwood Valley. And it's living inside our master.
How do you kill a demon that lives inside the house? What if you can't get out? What if you're next?
Survival is more than adoption, it's knowing whom to sacrifice to live one more day.