The surgeon spoke English, and he said to Billy, “I take it you find war a very comical thing.”

Billy looked at him vaguely. Billy had lost track momentarily of where he was or how he had gotten there. He had no idea that people thought he was clowning. It was Fate, of course, which had costumed him — Fate, and a feeble will to survive.

“Did you expect us to laugh?” the surgeon asked him.

The surgeon was demanding some sort of satisfaction. Billy was mystified. Billy wanted to be friendly, to help, if he could, but his resources were meager. His fingers now held the two objects from the lining of the coat. Billy decided to show the surgeon what they were.

“You thought we would enjoy being mocked?” the surgeon said. “And do you feel proud to represent America as you do?”

Billy withdrew a hand from his muff, held it under the surgeon’s nose. On his palm rested a two-carat diamond and a partial denture. The denture was an obscene little artifact — silver and pearl and tangerine. Billy smiled.

The parade pranced, staggered and reeled to the gate of the Dresden slaughterhouse, and then it went inside. The slaughterhouse wasn’t a busy place any more. Almost all the hooved animals in Germany had been killed and eaten and excreted by human beings, mostly soldiers. So it goes.

The Americans were taken to the fifth building inside the gate. It was a one-story cement-block cube with sliding doors in front and back. It had been built as a shelter for pigs about to be butchered. Now it was going to serve as a home away from home for one hundred American prisoners of war. There were bunks in there, and two potbellied stoves and a water tap. Behind it was a latrine, which was a one-rail fence with buckets under it.

There was a big number over the door of the building. The number was five. Before the Americans could go inside, their only English-speaking guard told them to memorize their simple address, in case they got lost in the big city. Their address was this: “Schlachthöf-funf.” Schlachthof meant slaughterhouse. Fünf was good old five.

Billy Pilgrim got onto a chartered airplane in Ilium twenty-five years after that. He knew he was going to crash, but he didn’t want to make a fool of himself by saying so. It was supposed to carry Billy and twenty-eight other optometrists to a convention in Montreal.

His wife, Valencia, was outside, and his father-in-law, Lionel Merble, was strapped to the seat beside him.

Lionel Merble was a machine. Tralfamadorians, of course, say that every creature and plant in the Universe is a machine. It amuses them that so many Earthlings are offended by the idea of being machines.

Outside the plane, the machine named Valencia Merble Pilgrim was eating a Peter Paul Mound Bar and waving bye-bye.

The plane took off without incident. The moment was structured that way. There was a barbershop quartet on board. They were optometrists, too. They called themselves “The Febs,” which was an acronym for “Four-eyed Bastards.”

When the plane was safely aloft, the machine that was Bill’s father-in-law asked the quartet to sing his favorite song. They knew what song he meant, and they sang it, and it went like this:

Billy’s father-in-law laughed and laughed at that, and he begged the quartet to sing the other Polish song he liked so much. So they sang a song from the Pennsylvania coal mines that began:

Speaking of people from Poland : Billy Pilgrim accidentally saw a Pole hanged in public, about three days after Billy got to Dresden. Billy just happened to be walking to work with some others shortly after sunrise, and they came to a gallows and a small crowd in front of a soccer stadium. The Pole was a farm laborer who was being hanged for having had sexual intercourse with a German woman. So it goes.

Billy, knowing the plane was going to crash pretty soon, closed his eyes, traveled in time back to 1944. He was back in the forest in Luxembourg again — with the Three Musketeers. Roland Weary was shaking him, bonking his head against a tree. “You guys go on without me,” said Billy Pilgrim.

The barbershop quartet on the airplane was singing “Wait Till the Sun Shines, Nelly,” when the plane smacked into the top of Sugarbush Mountain in Vermont. Everybody was killed but Billy and the copilot. So it goes.

The people who first got to the crash scene were young Austrian ski instructors from the famous ski resort below. They spoke to each other in German as they went from body to body. They wore black wind masks with two holes for their eyes and a red topknot. They looked like golliwogs, like white people pretending to be black for the laughs they could get.

Billy had a fractured skull, but he was still conscious. He didn’t know where he was. His lips were working, and one of the golliwogs put his ear close to them to hear what might be his dying words.

Billy thought the golliwog had something to do with the Second World War, and he whispered to him his address: “Schlachthof-fünf.”

Billy was brought down Sugarbush Mountain on a toboggan. The golliwogs controlled it with ropes and yodeled melodiously for right-of-way. Near the bottom, the trail swooped around the pylons of a chair lift. Billy looked up at all the young people in bright elastic clothing and enormous boots and goggles, bombed out of their skulls with snow, swinging through the sky in yellow chairs. He supposed that they were part of an amazing new phase of the Second World War. It was all right with him. Everything was pretty much all right with Billy.

He was taken to a small private hospital. A famous brain surgeon came up from Boston and operated on him for three hours. Billy was unconscious for two days after that, and he dreamed millions of things, some of them true. The true things were time-travel.

One of the true things was his first evening in the slaughterhouse. He and poor old Edgar Derby were pushing an empty two-wheeled cart down a dirt lane between empty pens for animals. They were going to a communal kitchen for supper for all. They were guarded by a sixteen-year-old German named Werner Gluck. The axles of the cart were greased with the fat of dead animals. So it goes.

The sun had just gone down, and its afterglow was backlighting the city, which formed low cliffs around the bucolic void to the idle stockyards. The city was blacked out because bombers might come, so Billy didn’t get to see Dresden do one of the most cheerful things a city is capable of doing when the sun goes down, which is to wink its lights on one by one.

There was a broad river to reflect those lights, which would have made their nighttime winkings very pretty indeed. It was the Elbe.