"That's easy. I used to know you."
He smiled faintly. There was something about his face....
"You look well in the uniform of the Penn-dragoons," he said. "Better than you ever did in Aerospace blue."
"Good God!" I said. "Toby Mallon!"
He ran a hand over his bald head. "A little less hair on top, plus a beard as compensation, a few wrinkles, a slight pot. Oh, I've changed, Jackson."
"I had it figured as close to eighty years," I said. "The trees, the condition of the buildings—"
"Not far off the mark. Seventy-eight years this spring."
"You're a well-preserved hundred and ten, Toby."
He shook his head. "You weren't the only one in the tanks. But you had a better unit than I did. Mine gave out twenty years ago."
"You mean—you walked into this cold—just like I did?"