This story is about Greg and his 3 friends. They go into a deserted house that is reputed to be haunted. In the cellar, they discover an old camera that prints out the photos it takes (a Polaroid type although the book doesn't say it is a Polaroid). Greg takes it home with him. When he takes pictures with it, the photos come out different than the thing Greg takes pictures of. He soon realizes that the photos from the camera show a future moment of the item or person he takes the picture of. This book wasn't especially scary. But it was tense. Greg and his friends have to find out what to do with the camera. I enjoyed the book.