So overpowered was I by the importance of the discovery I had made in the bowels of that sunken ship, that when I reached the top of the ladder and found myself standing once more among my fellow-men in the decent and clean world above the waves, it seemed as if I must begin my story to old Leversidge before the front glass of my helmet was removed; and, if such a thing were possible, his impatience was even greater than my own. There we stood, scarcely three feet apart, in the same world, breathing the same air, looking upon the same things, and yet to all intents and purposes for the time being as widely separate as the poles.

As soon, however, as the glass was removed I accepted my tender's assistance, and clambering aboard seated myself on the combing of the main hatch. Beside me on the deck lay the sodden baggage, just as I had sent it up from the vessel below, as yet untouched. On seeing it I bade my tender, as soon as my helmet was removed, commence unpacking it. While he was thus employed Leversidge stood opposite me, his lips trembling and his fingers itching to draw me away in order that he might question me as to the result of my search. When, therefore, I was attired in civilized dress, he could no longer contain himself, but putting his arm through mine, and picking up the baggage from the seat, drew me away towards the cabin aft, where, having made certain that we were alone, he seated himself at the table and once more eagerly scanned my face.

"What have you to tell me?" he inquired, in a voice so changed that it almost startled me. "You have discovered something which has surprised you. I can see that much in your face. What is it? Have you got the pearl?"

"One thing at a time, if you please," I answered. "I must take your questions in their proper order. To begin with, let me confess that I have not got the pearl. It is just possible that it may be in that luggage I sent up from below, though I must say for my own part I don't think it probable. At any rate, if it is not there, I can only hazard a guess as to where it can be. Certainly it is not on the person of the drowned man, for I searched him thoroughly before I came up."

Almost before I had finished speaking he had seated himself on the floor beside the bag he had brought with him to the cabin. It must have been a cheap concern when new, for to wrench it open now was a matter of very small difficulty. The material of which it was composed was certainly not leather, but some sort of composition, which tore away from its fastenings like so much brown paper. I sat still, smoking my pipe and composedly watching him while he pitched on to the floor the various articles it contained. It was evident from the expression on his face that he was not repaid for his search. At any rate, signs of a pearl there were none, nor were there any indications to show that it had ever been kept in there at all. The old man turned the heap of clothes over and over, and afterwards examined the bag most carefully, but no amount of looking could show him the article for which he was so ardently searching. Having at length convinced himself that it was not there he turned to me again.

"It is quite certain," he said, looking up at me sharply, "that it is not in this bag. Are you sure there was no other luggage in the cabin?"

"Quite sure," I answered. "But, before we go any further, perhaps you had better let me tell you all that I discovered when I was down below. Heaven knows it throws a new enough light upon the subject."

"Go on," he said, pushing the things he had taken out of the bag away from him as he spoke. "Tell me everything. You know how impatient I am. What is it you have discovered?"

"I will tell you," I answered. "As I said just now, when I entered the cabin I saw the body of your agent lying half in and half out of his bunk. From the state of his toilet it was plain that he had not retired for the night when the vessel struck, as you remember the Reverend Colway-Brown stated. It struck me as strange, therefore, that he had not been able to get out of his cabin during the brief time allowed the unfortunate passengers for escape. However, that is neither here nor there. There is one point which dwarfs all the others. Having discovered this luggage, which you have now examined, and sent it up to you, I determined to search the person of the man himself for the pearl. I did so only to make one terrible discovery."

"What was that?" cried Mr. Leversidge, in an agony of impatience. "For Heaven's sake, man, get on quicker with your story. Why don't you come to the point? Can't you see that you are driving me distracted with your shilly-shallying? What was the matter with our man that he caused such a shock to your feelings?"

I paused for a moment, fixed my eyes hard upon him, and then said impressively, "He has been murdered. His throat was cut from ear to ear."

If the matter had not been so terribly serious I should have felt inclined to laugh at the expression upon the old gentleman's face. He was as white as a sheet, his eyes started half out of his head, and his mouth opened and shut like a fish fresh taken from his native element. It was nearly half a minute before he could find sufficient voice to answer me.

"Murdered!" he cried. "My God, what do you mean, Collon? You must be mad to say such a thing. How could he have been murdered? And who could have done it?"

"That he was murdered admits of no doubt," I answered. "There was the proof before me. What is more, for the reason that the victim was preparing to retire to rest, it is plain it must have been done just before the vessel struck."

"But who did it, think you? Did you discover any clue that could tell us that? Not that it matters much, seeing that both murderer and victim are now dead."

"Don't be too sure of that. We know the victim is dead, but of the man who killed him I am not so sure."

"What do you mean?"

In answer I took from the locker beside me the small canvas bag I had worn strapped round my waist when I visited the vessel. I plunged my hand into it and drew out something that I pushed across the table to my friend. He picked it up with a cry of astonishment.

"A razor!" he cried. "But doesn't this look as if the man did away with himself?"

"I think not," I answered. "Just look at the white handle and tell me if you know the name upon it."

He took out his glasses, and, having placed them upon his nose, carefully examined the bone handle of the deadly weapon I had given him. This time he was even more astonished than before, and, if the truth must be told, more shocked.

"Colway-Brown," he said to himself; "why, bless my soul, that's the name of one of the sole survivors from the wreck, the person to whom we telegraphed from Batavia, the clergyman who gave us the last news of the dead man. What does this terrible thing mean?"

"If you ask what I think," I said very slowly and deliberately, "I think it looks like a put-up job. If you will remember, when you gave me the outline of the case, you told me that attempts had been made to obtain the pearl before your agent left Australia. It is plain, therefore, that it was known to be in his possession. An individual accordingly ships as a parson, calls himself Colway-Brown, books a berth in the next cabin to that occupied by your unfortunate friend. There is only one thing, however, which beats me, and that, I must confess, is a stumper."

"What is it?"

"I can't understand what induced him to murder the man on that particular night of all others. It was such a stupid place to choose. He might have done it in Thursday Island and have got safely ashore, or he might have waited until they got to Batavia. To do it between two ports of call, and at such a time of night, seems to me like the work of a madman, and I can't make head or tail of it."

"Perhaps when the vessel struck the scoundrel determined to obtain the pearl or perish in the attempt."

"I'm afraid that won't do either, for by his own confession we know the Rev. Colway-Brown was on deck at the time she struck. He could not, therefore, have made his way down the companion ladder, crossed the saloon, and passed along the alleyway to the cabin, have entered, cut your agent's throat, found and possessed himself of the pearl, have returned to the deck and saved his own life in the few seconds that elapsed between the moment of the vessel's striking and her foundering."

"But if he did not do it then how do you account for it?" he asked.

"I can't account for it at all," I answered. "One thing, however, is self-evident. The suspicion is strongest against Colway-Brown, and, as your pearl is not among the dead man's effects or upon his body, it is only natural to suppose that it is in the custody of that reverend gentleman, who was so fortunate as to get ashore, not only with his life, but as he thought without being detected in his crime."

"The rascal, the double-dyed rascal. But he needn't think he has beaten us. I'll run him to earth and he shall swing for this, or my name is not Leversidge."

"But you have got to catch him first," I said, "and from the sample he has already given us of his prowess I incline to the belief that he's as slippery a customer as ever wore shoe-leather."

"Nevertheless he shall hang, or I'll know the reason why."

"I think I can tell you the reason why," I said quietly. "He won't hang, because when everything is said and done it would be about the most inadvisable step you could take, in your own interests and those of your firm, to bring him before a court of Justice. You're not particularly anxious, I suppose, that the Government should become aware of your visit to this wreck?"

"Very naturally," he replied. "I have already told you that, I think."

"In that case how do you propose to show that you became aware of the fact that your man was murdered? and if you will excuse my saying so, I cannot help thinking that you will find it an extremely difficult, if not quite impossible, task to prove that our friend Colway-Brown was the man who committed this terrible crime."

"Not at all," he answered. "What about the razor? We know that it is his property, and if it was not with it that the murder was committed, how do you account for it being in his cabin?"

"I am not attempting to account for it at all," I answered. "I am simply endeavouring to show you how futile it would be in all probability to try to bring the crime home to the man whom we suspect."

"Then what do you propose doing?"

I thought for a few moments before I answered.

"Well, as far as I can see, the best plan would be," I said, "to follow our reverend friend up, and when we have got him in a close corner, just to tax him with his crime and threaten to hand him over to Justice if he does not return to you the property he stole. If this is judiciously managed there should not be much difficulty in obtaining from him what you want."

"But supposing he has parted with the pearl in the meantime, what then? A nice position we should find ourselves in."

"I don't think he is likely to dispose of it just yet," I answered. "You see he would not have an opportunity. He would be afraid to try it on in Thursday Island, where the pearl was known, or, for the matter of that, in Australia at all. What is more, he'll not be likely to hurry, having no notion that there is anybody on his track. He knows he is the only soul who escaped from the wreck, and he is certain to think his victim will remain undiscovered for all time. With a little luck you should be able to catch him before he can get away."

"But you speak of my catching him. Surely you do not intend to let me go on alone? Remember I set such store by your assistance."

"If you wish it I will, of course, go through the business with you," I answered. "But it looks like being a bigger affair than I at first contemplated, and my time is valuable."

"It shall be made worth your while; you need have no fear on that score. And now, I suppose, it is no use our remaining here; what shall we do?"

"Up anchor and be off to Thursday Island as fast as we can go," I said promptly.

"And when we get there?"

"Seize the Reverend Colway-Brown as soon as possible, if he's there, and frighten him into handing over the jewel he has so wrongfully taken possession of, by the best methods in our power."

"And if he has left the island?"

"Then we'll follow him like bloodhounds until we catch him, even if we have to go half round the world to do it."

"You mean it?"

"I do," I answered.

"Then shake hands on it."

We shook hands, and in less than a quarter of an hour the schooner was bowling along under a merry breeze towards Thursday Island, and its most important inhabitant, as far as we were concerned, the Reverend Colway-Brown.