When I had put the paper down, the doctor, who followed me with his eyes, said laughingly—

"You see that interview was unfortunately interrupted. You are the gentleman with the full particulars, for we know that your friend Stewart plays a very small part in the affair. Without your energy, I think I may say that he is little less than a fool."

"Hardly that, as you may yet discover," I said, seeing instantly which way safety lay; "he knows as much as I know."

"Which is not very much after all, is it?—but that we must have fuller knowledge of. I am here to ask you to write accurately for us a complete account of every step you have taken in this matter since you were fool enough to follow Martin Hall, and poke your nose into business which did not concern you. As you know, Hall was punished in the Channel: you saw his end, as I hear from my comrade Paolo. We have spared you, and may yet spare you, if you do absolutely what we tell you."

"And otherwise?"

He smiled cruelly, and his eyes danced when he answered—

"Otherwise, you would give all you possessed if I would shoot you now as you sit; but don't let us look at it that way. You must see that your case is utterly hopeless; you will never look again on any civilised city, or see the face of a man you have known. For all purposes you are as dead as though twenty feet of earth covered you. If you would still have life, not altogether under unfavourable conditions, you have but to ask for pen, ink, and paper—and to make yourself one of us."

"That I will never do!"

"Oh, you say that now; but we shall give you some days to think of it. Let me advise you to be a man of common sense, and not to run your head against a stone wall. Believe me, we are a curious company; I don't suppose there is a man aboard us who has not some deaths to his account. I am wanted for a murder in Shropshire; but I am giving your people a little trouble. Ha! ha!"

This was said with such a fearful laugh that I shrank back from the man, who restrained himself with an effort as he rose to go; but as he stood at the door, he said—