While one part of Raf's brain fitted together the jigsaw of bits and patches of information, the other section dealt with that message of warning the other had beamed to him. The pilot knew that the captive must be in immediate danger. He could not understand all that had happened in that interview with the aliens, but he was left with the impression that the prisoner had been not only tried but condemned. And it was up to him to help.
But how? By the time he got back to the flitter or was able to find Hobart and the others, it might already be too late. _He_ must make the move, and soon, for there had been unmistakable urgency in the captive's message. Raf's hands fumbled at the grid before him, and then he realized that the opening was far too small to admit him to the room on the other side of the wall.
To return to the underground ways might be a waste of time, but he could see no other course open to him. What if he could not find the captive later? Where in the maze of the half-deserted city could he hope to come across the trail again? Even as he sorted out all the points which could defeat him, Raf's hands and feet felt for the notched steps which would take him down. He had gone only two floors when he was faced with a grille opening which was much larger. On impulse he stopped to measure it, sure he could squeeze through here, if he could work loose the grid.
Prying with one hand and a tool from his belt pouch, he struggled not only against the stubborn metal but against time. That strange mental communication had ceased. Though he was sure that he still received a trace of it from time to time, just enough to reassure him that the prisoner was still alive. And each time it touched him Raf redoubled his efforts on the metal clasps of the grid. At last his determination triumphed, and the grille swung out, to fall with an appalling clatter to the floor.
The pilot thrust his feet through the opening and wriggled desperately, expecting any moment to confront a reception committee drawn by the noise. But when he reached the floor, the hallway was still vacant. In fact, he was conscious of a hush in the whole building, as if those who made their homes within its walls were elsewhere. That silence acted on him as a spur.