"This is a war, yes. We expected you. We wish you to take our final warning to Canis III. Follow us to our base and you will be briefed." Calhoun said tartly: "Suppose you tow me! When you dragged me out of overdrive you played the devil with my power!" Murgatroyd said, "Chee?" and tried to stand on his hind legs to look at the screen. Calhoun brushed him away. When acknowledgment came from the unseen other ship, and the curious cushiony drag of the towing began to be felt, he cut off the microphone to the light-beam. Then he said severely to Murgatroyd: "What I said was not quite true, Murgatroyd. But there is a war on. To be a neutral I have to appear impressively helpless. That is what neutrality means." But he was far from easy in his mind. Wars between worlds were flatly impossible. The facts of space travel made them unthinkable. Yet there seemed to be a war. Something was happening, anyhow, which was contrary to all the facts of life in modern times. And Calhoun was involved in it. It demanded that he immediately change all his opinions and all his ideas of what he might have to do. The Med Service could not take sides in a war, of course. It had no right to help one side or the other. Its unalterable function was to prevent the needless death of human beings. So it could not help one combatant to victory. On the other hand it could not merely stand by, tending the wounded, and by alleviating individual catastrophes allow their number to mount. "This," said Calhoun, "is the devil!" "Chee!" said Murgatroyd. The Med ship was being towed. Calhoun had asked for it and it was being done. There should have been no way to tow him short of a physical linkage between ships. There were force-fields which could perform that function—landing-grids used them constantly—but ships did not mount them—not ordinary ships, anyhow. That fact bothered Calhoun. "Somebody's gone to a lot of trouble," he said, scowling, "as if wars were going back into fashion and somebody was getting set to fight them. Who's got us, anyhow?" The request for Med Service aid had come from Phaedra II. But the military action—if any—had been stated to be due on Canis III. The flaming nearby sun and its family of planets was the Canis solar system. The odds were,