I thought this candour highly indiscreet: charged too with menace. A matter gains in significance by mystery. The Jacks would think nothing of a diamond being in the ship as a part of her cargo, which might include a quantity of specie for all they knew. But some of them might think more often about it than was at all desirable when they understood it was stowed away under a plank, or was to be got by tapping about for a hollow echo, or probing with the judgment of a carpenter when the Major was on deck and the coast aft all clear. We had been three weeks at sea; it was a roasting afternoon, though I cannot exactly remember the situation of the ship. Our tacks were aboard and the bowlines triced out, and the vessel was scarcely looking up to her course, slightly heeling away from a fiery fanning of wind off the starboard bow, with the sea trembling under the sun in white-hot needles of broken light, and a narrow ribbon of wake glancing off into a hot blue thickness that brought the horizon within a mile of us astern. I had charge of the deck from twelve to four. For an hour past the Major, cigar in mouth, had been stretched at his ease in a folding chair; a book lay beside him on the skylight, but he scarcely glanced at it. I had paused to address him once or twice, but he showed no disposition to chat. Though he lay in the most easy lounging posture imaginable, I observed a restless, singular expression in his face, accentuated yet by the looks he incessantly directed out to sea, or glances at the deck forward, or around at the helm, so far as he might move his head without shifting his attitude. It was as though his mind were in labour with some scheme. A man might so look whilst working out the complicated plot of a play, or adjusting by the exertion of his memory the intricacies of a novel piece of mechanism. [Illustration: "STRETCHED AT HIS EASE IN A FOLDING CHAIR."] On a sudden he started up and went below. A few minutes after he had left the deck, Captain North came up from his cabin, and for some while we paced the planks together. There was a pleasant hush upon the ship; the silence was as refreshing as a fold of coolness lifting off the sea. A spun-yarn winch was clinking on the forecastle; from alongside rose the music of fretted waters. I was talking to the captain on some detail of the ship's furniture; when Major Hood came running up the companion steps, his face as white as his waistcoat, his head uncovered, every muscle of his countenance rigid, as with horror. "Good God, captain!" cried he, standing in the companion, "what do you think has happened?" Before we could fetch a breath he cried: "Someone's stolen the diamond!" I glanced at the helmsman who stood at the radiant circle of wheel staring with open mouth and eyebrows arched into his hair. The captain, stepping close to Major Hood, said in a low, steady voice:-- "What's this you tell me, sir?"