Skeleton Man by Joseph Bruchac
This was another middle grade book that came after my time. It's still requested a lot, so I decided to check it out for myself. 'Skeleton Man' opens suddenly with Molly coming home to an empty house. Her parents are gone, at school a teacher notices somethings wrong and soon Molly is handed by social services to a strange old man who claims to be a distant relative and has the documentation to prove it.
It doesn't take long for Molly to figure out something is wrong with her "Uncle". He never eats and there seems to be something in the food he gives her, so she she stops eatng it, and he locks the door of her room at night. This is a gripping middle grade horror story built off of a Native American legend. Molly's dreams offer her horrific visions, but also inspire her to make her escape and possibly save her family, too.
Next: 'Return of Skeleton Man'