“How can we see them if they are frozen?” I say. Müller is insulted if I do not argue with him. The arguing is part of the theory.

“Look at the wireless!” he says, pointing to it sitting disemboweled on the table. We have the back off the wireless again, and in the barretter’s glass tube is a red reflection of the stove’s flame. “The light is a reflection off the ice of the star.”

“A reflection of what?”

“Of the shells, of course.”

I do not say that there were stars before there was this war, because Müller will not have an answer to this, and I have no desire to destroy his theory, and besides, I do not really believe there was a time when this war did not exist. The star shells have always exploded over the snow-covered craters of No Man’s Land, shattering in a spray of white and red, and perhaps Müller’s theory is true.

“At that point,” Travers said, “at the event horizon, no more information can be transmitted out of the black hole because gravity has become so strong, and so the collapse appears frozen at the Schwarzschild radius.”

“Frozen,” I said, thinking of Müller.

“Yeah. As a matter of fact, the Russians call black holes ‘frozen stars.’ You were at the Russian front, weren’t you?”

“What?”

“In World War I.”

“But the star doesn’t really freeze,” I said. “It goes on collapsing.”

“Yeah, sure,” Travers said. “It keeps collapsing in on itself until even the atoms are stripped of their electrons and there’s nothing left except what they call a naked singularity, but we can’t see past the Schwarzschild radius, and nobody inside a black hole can tell us what it’s like in there because they can’t get messages out, so nobody can ever know what it’s like inside a black hole.”

“I know,” I said, but he didn’t hear me.