Slaughterhouse Five is a fictional story based on the real bombing of Dresden at the end of World War II. Telling much more than that would ruin the story.

I have mixed feelings about this book. On the one hand it's full of dry humor and quite funny. On the other it's extremely hard and though to read the graphic details of the bombings that served no apparent reason, killed many people and destroyed a beautiful city.

In the end, I think it's a must read, the time traveling may not be your cup of tea, but it's a raw book about the total uselessness of war and I hope people learn from it.