"Maybe not," I said doubtfully, "but in this case the scientists all seem pretty sure. And after all, what other explanation for the thing is there?" To that he did not answer, though I could see that he was unconvinced. So I was not surprised when Dr. Howard left for Mannlertown that night by a fast Chicago rocket express. To me, as to others, he said only that he wished to make a brief examination of the scene of the disaster with certain ideas of his own in mind. I knew without his telling, though, that his doubts persisted. The world at large did not share those doubts. There was wide-spread horror over the Mannlertown catastrophe, but it was the rather abstract horror aroused by some unprecedented accident of which the very strangeness somehow dulls the edge of reality. And none seemed to doubt the dictum of the scientists concerning the gigantic missile from space that had shot into the earth's atmosphere grazing its surface and then shooting out again. I know that, despite Dr. Howard's attitude, I myself did not doubt it. Dr. Howard returned from Mannlertown two days later. The only information that he imparted was that his investigations had proved satisfactory. He said nothing more and, assuming that his inspection had disproved his doubts, I forbore mentioning the thing to him. It was not until the second cataclysm, a day later, that I learned along with the rest of the world, what his thoughts on the matter were. This second cataclysm took place on the afternoon of July first, but, because of the remoteness of its scene, word of it did not reach most of the world until the next day. For the scene of the second event was those bleak Finnish plains that lie east of the Baltic, and particularly one barren valley far from the nearest telegraph. News concerning what had happened was scanty enough. The central fact was that upon one of that valley's slopes, something had gouged from the grassy earth a tremendous trench like the one that had been cut through Mannlertown. It was of the same general size--several miles in length and a quarter-mile in depth and width; but in that remote place it had done almost no damage to life or property. The only damage to property, in fact, had been the destruction of a herder's hut that had been in the path of the thing. The seven herders who had occupied it, luckily for them, had been tending their flocks on the slope of a neighboring valley. All had heard a gigantic roaring and grinding sound, and had run up to the dividing ridge as the sound ceased, to be confronted by the great gouge below. One of them, however, had been on the ridge at the time and told an excited and almost incomprehensible tale regarding it.