But a counter-thought came to trouble him: _I have a duty to obey; The country gave me birth and brought me up, and now it's got a war to fight._ He arose and let himself down through the conning tower. He reached for the microphone, but the receiver croaked again. "Sugar William Niner Zero, you are ordered to answer immediately. Mother's fixing shortening bread. Mother wants you. Over." Shortening bread--big plans, something special, a radiological death-dish for the world. He hated the voice quietly. His hand touched the microphone but did not lift it. He stood poised there in the light of a single glow-lamp, feeling his small sub rocking gently in the calm sea, listening to the quiet purr of the atomics beneath him. He had come to love the little sub, despite the loneliness of long weeks at sea. His only companion was the sub's small computer which was used for navigation and for calculations pertaining to the firing of the rocket-missiles. It also handled the probability mathematics of random search, and automatically radioed periodic position reports to the home-base computer. He glanced suddenly at his watch, it was nearly time for a report. Abruptly he reached out and jerked open the knife-switch in the computer's antenna circuit. Immediately the machine began clicking and clattering and chomping. A bit of paper tape suddenly licked out of its answer-slot. He tore it off and read the neatly printed words: MALFUNCTION, OPEN CIRCUIT, COMMUNICATIONS OUTPUT; INSERT DATA. Mitch "inserted data" by punching a button labelled NO REPAIR and another labelled RADIO OUT. One bank of tubes immediately lost its filament-glow, and the computer shot out another bit of tape inscribed DATA ROGERED. He patted it affectionately and grinned. The computer was just a machine, but he found it easy to personalize the thing.... The command-set was crackling again. "Sugar William Niner Zero, this is Commsubron Killer. Two messages. Mother wants you. Daddy has a razor strap. Get on the ball out there, boy! Acknowledge. Over." Mitch whitened and picked up the microphone. He keyed the transmitter's carrier and spoke in a quiet hiss. "Commsubron Killer from Sugar William Niner Zero. Message for Daddy. Sonnyboy just resigned from the Navy. Go to hell, all of you! Over and out!" He shut off the receiver just as it started to stutter a shocked reply. He dropped the mike and let it dangle. He stood touching his fingertips to his temples and breathing in shallow gasps. Had he gone completely insane? He sat down on the floor of the tiny compartment and tried to think. But he could only feel a bitter resentment welling up out of nowhere. Why? He had always gotten along in the Navy. He was the undersea equivalent of a fighter pilot, and he had always liked his job. They had even said that "he had the killer instinct"--or whatever it was that made him grin maliciously when he spotted an enemy sub and streaked in for the kill.