Head First Into Hell (WIP title)

The story is still a W.I.P. so here's a summarized version of the current one.  Allen and Aidan are brothers. Their friend Lavender lives with them as she is an orphan like the brothers.  Aidan's ex has been acting weird lately. Always going into an old rundown house afterschool. When Allen follows her, he finds an old book and takes it home. What happens next, is hell (literally)