Caught Between the Quick and the Dead. Milk Carton People is a paranormal thriller about people who suddenly find themselves invisible, able to observe things but unable to participate. Do they go mad? Maybe they find others. It is quite possible that there is no point in being invisible. This is a book that plays on the very thin line of sanity and pure despair. The characters act and react to the new challenges and the reader gets to go along for the ride.