I had witnessed more than once when a Confederate force holding an impenetrable woodland had been shelled at random for some hours with the largest guns that the enemy could bring into the field. Trees were torn and broken, branches scattered in all directions, fragments of stone, earth, and coral rock flung all around. Particularly I remember that a piece of metal of considerable size had cut off the tops of two or three trees, and fixed itself at last on what was now the summit of one about a third of whose length had been broken off and lay on the ground. I soon perceived that this miraculous bombardment had proceeded from a point to the north-eastward, the direction in which at that season and hour the sun was visible. Proceeding thitherward, the evidences of destruction became every minute more marked, I might say more universal. Trees had been thrown down, torn up by the roots, hurled against one another; rocks broken and flung to great distances, some even thrown up in the air, and so reversed in falling that, while again half buried in the soil, they exposed what had been their undermost surface. In a word, before I had gone two miles I saw that the island had sustained a shock which might have been that of an earthquake, which certainly equalled that of the most violent Central American earthquakes in severity, but which had none of the special peculiarities of that kind of natural convulsion. Presently I came upon fragments of a shining pale yellow metal, generally small, but in one or two cases of remarkable size and shape, apparently torn from some sheet of great thickness. In one case I found embedded between two such jagged fragments a piece of remarkably hard impenetrable cement. At last I came to a point from which through the destruction of the trees the sea was visible in the direction in which the ship had lain; but the ship, as in a few moments I satisfied myself, had utterly disappeared. Reaching the beach, I found that the shock had driven the sea far up upon the land; fishes lying fifty yards inland, and everything drenched in salt water. At last, guided by the signs of ever-increasing devastation, I reached the point whence the mischief had proceeded. I can give no idea in words of what I there found. The earth had been torn open, rooted up as if by a gigantic explosion. In some places sharp-pointed fragments of the coral rock, which at a depth of several feet formed the bed of the island, were discernible far below the actual surface. At others, the surface itself was raised several feet by dèbris of every kind. What I may call the crater—though it was no actual hole, but rather a cavity torn and then filled up by falling fragments—was two or three hundred feet in circumference; and in this space I found considerable masses of the same metallic substance, attached generally to pieces of the cement. After examining and puzzling myself over this strange scene for some time, my next care was to seek traces of the ship and of her crew; and before long I saw just outside the coral reef what had been her bowsprit, and presently, floating on the sea, one of her masts, with the sail attached. There could be little doubt that the shock had extended to her, had driven her off the reef where she had been fixed into the deep water outside, where she must have sunk immediately, and had broken her spars. No traces of her crew were to be seen. They had probably been stunned at the same time that they were thrown into deep water; and before I came in sight of the point where she had perished, whatever animal bodies were to be found must have been devoured by the sharks, which abounded in that neighbourhood. Dismay, perplexity, and horror prevented my doing anything to solve my doubts or relieve my astonishment before the sun went down; and during the night my sleep was broken by snatches of horrible dreams and intervals of waking, during which I marvelled over what I had seen, scarcely crediting my memory or my senses. In the morning, I went back to the crater, and with some tools that had been left on shore contrived to dig somewhat deeply among the debris with which it was filled. I found very little that could enlighten me except pieces of glass, of various metals, of wood, some of which seemed apparently to have been portions of furniture; and one damaged but still entire relic, which I preserved and brought away with me."
Here the Colonel removed a newspaper which had covered a portion of his table, and showed me a metallic case beaten out of all shape, but apparently of what had been a silvery colour, very little rusted, though much soiled. This he opened, and I saw at once that it was of enormous thickness and solidity, to which and to favouring circumstances it owed its preservation in the general ruin he described. That it had undergone some severe and violent shock there could be no question. Beside the box lay a less damaged though still seriously injured object, in which I recognised the resemblance of a book of considerable thickness, and bound in metal like that of the case. This I afterwards ascertained beyond doubt to be a metalloid alloy whereof the principal ingredient was aluminium, or some substance so closely resembling it as not to be distinguishable from it by simple chemical tests. A friend to whom I submitted a small portion broken off from the rest expressed no doubt that it was a kind of aluminium bronze, but inclined to believe that it contained no inconsiderable proportion of a metal with which chemists are as yet imperfectly acquainted; perhaps, he said, silicon; certainly something which had given to the alloy a hardness and tenacity unknown to any familiar metallurgical compound.
"This," said my friend, opening the volume, "is a manuscript which was contained in this case when I took it from among the debris of the crater. I should have told you that I found there what I believed to be fragments of human flesh and bone, but so crushed and mangled that I could form no positive conclusion. My next care was to escape from the island, which I felt sure lay far from the ordinary course of merchant vessels. A boat which had brought me ashore—the smaller of the two belonging to the ship—had fortunately been left on the end of the island furthest from that on which the vessel had been driven, and had, owing to its remoteness, though damaged, not been fatally injured by the shock. I repaired this, made and fixed a mast, and with no little difficulty contrived to manufacture a sort of sail from strips of bark woven together. Knowing that, even if I could sustain life on the island, life under such circumstances would not be worth having, I was perfectly willing to embark upon a voyage in which I was well aware the chances of death were at least as five to one. I caught and contrived to smoke a quantity of fish sufficient to last me for a fortnight, and filled a small cask with brackish but still drinkable water. In this vessel, thus stored, I embarked about a fortnight after the day of the mysterious shock. On the second evening of my voyage I was caught by a gale which compelled me to lower the sail, and before which I was driven for three days and nights, in what direction I can hardly guess. On the fourth morning the wind had fallen, and by noon it was a perfect calm. I need not describe what has been described by so many shipwrecked sailors—the sufferings of a solitary voyager in an open boat under a tropical sun. The storm had supplied me with water more than enough; so that I was spared that arch-torture of thirst which seems, in the memory of such sufferers, to absorb all others. Towards evening a slight breeze sprang up, and by morning I came in sight of a vessel, which I contrived to board. Her crew, however, and even her captain, utterly discredited such part of my strange story as I told them. On that point, however, I will say no more than this: I will place this manuscript in your hands. I will give you the key to such of its ciphers as I have been able to make out. The language, I believe, for I am no scholar, is Latin of a mediæval type; but there are words which, if I rightly decipher them, are not Latin, and hardly seem to belong to any known language; most of them, I fancy, quasi-scientific terms, invented to describe various technical devices unknown to the world when the manuscript was written. I only make it a condition that you shall not publish the story during my life; that if you show the manuscript or mention the tale in confidence to any one, you will strictly keep my secret; and that if after my death, of which you shall be advised, you do publish it, you will afford no clue by which the donor could be confidently identified."
"I promise," said I. "But I should like to ask you one question. What do you conceive to have been the cause of the extraordinary shock you felt and of the havoc you witnessed? What, in short, the nature of the occurrence and the origin of the manuscript you entrust to my care?"
"Why need you ask me?" he returned. "You are as capable as myself of drawing a deduction from what I have told you, and I have told you everything, I believe, that could assist you. The manuscript will tell the rest."
"But," said I, "an actual eye-witness often receives from a number of little facts which he cannot remember, which are perhaps too minute to have been actually and individually noted by him, an impression which is more likely to be correct than any that could be formed by a stranger on the fullest cross-questioning, on the closest examination of what remains in the witness's memory. I should like to hear, before opening the manuscript, what you believe to have