I did not press him further, but to satisfy myself that he lay in ignorance of the workings of his own mind, deliberately introduced him to Mortimer Collins’s “Transmigration,” and gave him a sketch of the plot before he opened the pages.

“What rot it all is!” he said, frankly, at the end of an hour. “I don’t understand his nonsense about the Red Planet Mars and the King, and the rest of it. Chuck me the Longfellow again.”

I handed him the book and wrote out as much as I could remember of his description of the sea-fight, appealing to him from time to time for confirmation of fact or detail. He would answer without raising his eyes from the book, as assuredly as though all his knowledge lay before him on the printed page. I spoke under the normal key of my voice that the current might not be broken, and I know that he was not aware of what he was saying, for his thoughts were out on the sea with Longfellow.

“Charlie,” I asked, “when the rowers on the gallies mutinied how did they kill their overseers?”

“Tore up the benches and brained ’em. That happened when a heavy sea was running. An overseer on the lower deck slipped from the centre plank and fell among the rowers. They choked him to death against the side of the ship with their chained hands quite quietly, and it was too dark for the other overseer to see what had happened. When he asked, he was pulled down too and choked, and the lower deck fought their way up deck by deck, with the pieces of the broken benches banging behind ’em. How they howled!”

“And what happened after that?”

“I don’t know. The hero went away—red hair and red beard and all. That was after he had captured our galley, I think.”

The sound of my voice irritated him, and he motioned slightly with his left hand as a man does when interruption jars.

“You never told me he was red-headed before, or that he captured your galley,” I said, after a discreet interval.

Charlie did not raise his eyes.