Grim (Book 1)

Dana was on her way to finishing her 3rd year of high school before her life got thrown upside down. As she walks home from school, she notices her front door ajar. She's unprepared for the mysterious man in her house who can't remember why he's there or how he got there. Despite his terrible memory and evasive behavior, she agrees to help him remember what he's here for, out of the kindness of her heart. But the more she helps him, the more suspicious this whole situation becomes, as more paranormal activity starts occurring.