Slaughterhouse-Five, by Kurt Vonnegut was an anti-war book about the bombing of Dresden. The main theme of the book seemed to be destiny, or the fact that no one has free will. Throughout the book, Billy randomly travels through time. Every time he has the opportunity to make a choice that would seem like the right or smart thing to do, he doesn't do it, since he doesn't have the free will to make that choice. This also leads Billy to not worry about many things, knowing that they will happen no matter what others do. As explained on the planet Tralfamadore, Billy cannot make any choices. The Tralfamadorians tell him that he lacks free will, saying "Only on Earth is there talk of free will" (109). One of the Tralfamadorians even said that they were "trapped in another mass of amber" (108), referring to the fact that neither he nor Billy can change anything in life, and that everything was, is, and will be the same. Even the Tralfamadorians know how the end of the universe will come. They will test the fuel for their rockets, but it will fail and destroy the entire universe. When Billy hears this, he asks "isn't there a way to prevent this?" (149). The Tralfamadorians tell him that they cannot change him, as the pilot always has and always will. This will likely happen when Billy finally loses all faith in the idea of ​​free will. A prime example of fate would be when Billy is on a plane. In Slaughterhouse-Five, it is stated that "Billy, knowing that the plane would crash very soon, closed his eyes and traveled back in time to 1944" (198). Shortly thereafter, "the plane crashed into the top of Sugarbush Mountain in Vermont. Everyone was killed except Billy and the co-pilot" (199). Instead of doing anything, Billy simply waits for the plane to crash. If Billy had free will, he would have tried to warn the others on the plane, or he wouldn't have gotten on at all. Another good example of the lack of free will would be when Billy is about to die. Normally, someone would care about their deaths, but Billy doesn't. He locks a tape in a safety deposit box, saying "I, Billy Pilgrim, will die, am dead, and will always die on the thirteenth of February" (180). Before dying he gives a speech and knows that he will be murdered.