Every three pages you get a picture to solve why a character thought some way. I read and tried the first one, saw no windows open assumed a backdoor, then tried to see if im right but you need to go infront of a mirror to read the answers. While clevor, not practical when I read. By the end of it I wouldnt feel like checking my answer since id of forgotten it by the time im near a mirror, secondly, the next pages hints towards what the answer was. A cat, so theres a pet door? Since you see the cat in the window. But, usually why would I think it would be a pet door most cats are indoor in society. Sure theres outdoor cats, they meow at the door to be let out usually. I think this had some more chance to be something cool with the solve it yourself kind of gimmick but, the problem was it relied on not general information, maybe have answers convered by some openable paper in the back, so we dont see all the answers, because im not going back and forth to a mirror to figure this out. Too much of a hassle.