“If, on the other hand, we do know every living species, we must look for the animal in question among those marine creatures already cataloged, and in this event I would be inclined to accept the existence of a giant narwhale. “The common narwhale, or sea unicorn, often reaches a length of sixty feet. Increase its dimensions fivefold or even tenfold, then give this cetacean a strength in proportion to its size while enlarging its offensive weapons, and you have the animal we’re looking for. It would have the proportions determined by the officers of the Shannon, the instrument needed to perforate the Scotia, and the power to pierce a steamer’s hull. “In essence, the narwhale is armed with a sort of ivory sword, or lance, as certain naturalists have expressed it. It’s a king-sized tooth as hard as steel. Some of these teeth have been found buried in the bodies of baleen whales, which the narwhale attacks with invariable success. Others have been wrenched, not without difficulty, from the undersides of vessels that narwhales have pierced clean through, as a gimlet pierces a wine barrel. The museum at the Faculty of Medicine in Paris owns one of these tusks with a length of 2.25 meters and a width at its base of forty-eight centimeters! “All right then! Imagine this weapon to be ten times stronger and the animal ten times more powerful, launch it at a speed of twenty miles per hour, multiply its mass times its velocity, and you get just the collision we need to cause the specified catastrophe. “So, until information becomes more abundant, I plump for a sea unicorn of colossal dimensions, no longer armed with a mere lance but with an actual spur, like ironclad frigates or those warships called ‘rams,’ whose mass and motor power it would possess simultaneously. “This inexplicable phenomenon is thus explained away—unless it’s something else entirely, which, despite everything that has been sighted, studied, explored and experienced, is still possible!” These last words were cowardly of me; but as far as I could, I wanted to protect my professorial dignity and not lay myself open to laughter from the Americans, who when they do laugh, laugh raucously. I had left myself a loophole. Yet deep down, I had accepted the existence of “the monster.”