Here is a book that is hard to let go so we are stuck in history, suspense ... A psychopath removed by two people without food and encloses them in a place where it is impossible to escape except by killing his detention comrade ... Which will survive? Kidnappings succeed. This is Machiavellian, it plays with our nerves ... Especially since it is extremely rhythmic, the chapters are very short and so we pass quickly from the survey monitoring the situation of prisoners through the felt survivors ... We do not get bored for a second.