The thing he made had worked for much less than the tenth of a second, but it came out of his dream, ultimately, and it was linked with whatever sent messages from Asteroid M-387. There was still nothing intelligible about the whole affair. It contained no single rational element. But if there was no rational explanation, there was what now seemed reasonable action that could be taken. So he slept, and as usual the world went on its way unheeding. The fluting sounds from the sky remained the top news story of the day. There was no doubt of their artificiality, nor that they came from a small, tumbling, jagged rock which was one of the least of the more than fifteen hundred asteroids of the solar system. It was two hundred and seventy million miles from Earth. The latest computations said that not less than twenty thousand kilowatts of power had been put into the transmitter to produce so strong and loud a signal on Earth. No power-source of that order had been carried out to make the signals. But they were there. Astronomers became suddenly important sources of news. They contradicted each other violently. Eminent scientists observed truthfully that Schull's object, as such, could not sustain life. It could not have an atmosphere, and its gravitational field would not hold even a moderately active microbe on its surface. Therefore any life and any technology now on it must have come from somewhere else. The most eminent scientists said reluctantly that they could not deny the possibility that a spaceship from some other solar system had been wrecked on M-387, and was now sending hopeless pleas for help to the local planetary bodies. Others observed briskly that anything which smashed into an asteroid would vaporize, if it hit hard enough, or bounce away if it did not. So there was no evidence for a spaceship. There was only evidence for a transmitter. There was no explanation for that. It could be mentioned, said these skeptics, that there were other sources of radiation in space. There was the Jansky radiation from the Milky Way, and radiations from clouds of ionized material in emptiness, and radio stars were well known. A radio asteroid was something new, but--