“What might that be?” said Pollock.

“Pickled ’ed,” said the captain.

What?” said Pollock.

“’Ed—smoked. ’Ed of one of these Porroh chaps, all ornamented with knife-cuts. Why! What’s up? Nothing? I shouldn’t have took you for a nervous chap. Green in the face. By gosh! you’re a bad sailor. All right, eh? Lord, how funny you went!... Well, this ’ed I was telling you of is a bit rum in a way. I’ve got it, along with some snakes, in a jar of spirit in my cabin what I keeps for such curios, and I’m hanged if it don’t float upsy down. Hullo!”

Pollock had given an incoherent cry, and had his hands in his hair. He ran towards the paddle-boxes with a half-formed idea of jumping into the sea, and then he realised his position and turned back towards the captain.

“Here!” said the captain. “Jack Philips, just keep him off me! Stand off! No nearer, mister! What’s the matter with you? Are you mad?”

Pollock put his hand to his head. It was no good explaining. “I believe I am pretty nearly mad at times,” he said. “It’s a pain I have here. Comes suddenly. You’ll excuse me, I hope.”

He was white and in a perspiration. He saw suddenly very clearly all the danger he ran of having his sanity doubted. He forced himself to restore the captain’s confidence, by answering his sympathetic inquiries, noting his suggestions, even trying a spoonful of neat brandy in his cheek, and, that matter settled, asking a number of questions about the captain’s private trade in curiosities. The captain described the head in detail. All the while Pollock was struggling to keep under a preposterous persuasion that the ship was as transparent as glass, and that he could distinctly see the inverted face looking at him from the cabin beneath his feet.

Pollock had a worse time almost on the steamer than he had at Sulyma. All day he had to control himself in spite of his intense perception of the imminent presence of that horrible head that was overshadowing his mind. At night his old nightmare returned, until, with a violent effort, he would force himself awake, rigid with the horror of it, and with the ghost of a hoarse scream in his throat.