The reply was rigid and harsh. Captain Yaelstrom said, "I regret to remind your excellency that I have circled this planet before landing. It is incredibly rich in plant growth, incredibly underpopulated. And I assure your excellency that my superiors have not sent me here with any idle request. Mars must have room to emigrate." "And if we find ourselves unable to give it to you?" "I fear we shall have to take it, your excellency." Bliss studied the visitor from space, then said, "This is rather sudden, you know. I fear it will take time. You must have prospered amazingly on Mars to have overpopulated the planet so soon." "Conditions have not been wholly favorable," was the cryptic reply. "But as to time, we are scarcely in condition to move our surplus population overnight. It will take years--perhaps decades--twenty-five years at a minimum." Twenty-five years! That was too soon. If Captain Yaelstrom were a typical Martian, there was going to be trouble. Bliss recalled again that Earth had sent only its most aggressive young folk out to the red planet. He made up his mind then and there that he was somehow going to salvage for Earth its final half-century of peace. He said, "How many people do you plan to send here, Captain?" The ambassador hesitated. Then he said, "According to the computations of our experts, taking the population curve during the next twenty-five years into account, there will be seventeen million, three hundred thirty-two thousand five hundred--approximately." The figure was too large to be surplus, Bliss decided. It sounded to him as if humanity were about to abandon Mars completely. He wondered what the devil had gone wrong, decided this was hardly the time to ask. He offered Captain Yaelstrom a drink, which was refused, then asked him if he wouldn't like to wash up. To his mild surprise, the ambassador nodded eagerly. "I shall be grateful," he said. "You have no idea how cramped spaceship quarters can be." "I can imagine," said Bliss dryly. He led the way into the black-and-gold washroom, was amused at the slight but definite popping of ambassadorial eyes. Earth might be dying, he thought, but at least her destroyers would leave a heritage. He motioned toward the basin with its mermaid taps and Captain Yaelstrom hesitated, then began pulling off his black gauntlets. Bliss thought of something. "You mentioned twenty-five years," he said. "Is that Martian time or Earth time?" "Martian time," said the ambassador, letting the water run over his hands. Twenty-five years, Martian time--a Martian year was 1.88 Earth years. Bliss exhaled and said, "I think perhaps we shall be able to come to an agreement. It will take a little time, of course--channels, and all that."