"Can control."
"It didn't look like it, my friend."
"Oh, yus. Can control bodily leucocytes, corpuscles and such. Perfect cell replacement easy."
I looked down at him.
"If it's all that easy," I said. "I suppose your old men can run faster than your houses."
"No old men," said Lood.
"Well, old whatever-you-are's."
"No old. Not die. Oh, yus. Perfect cell replacement."
I stood very still.
"Do you mean you never die?" I asked.