Temple shrugged wearily. If anything were to be resolved between them, it would be later.

When the ships came moments afterwards—seven, not the five Arkalion predicted—they were completely unprepared.

Temple spotted them first on one of the viewing screens, half way between the receiver and the space station itself, silhouetted against the elongated shield of Andromeda. They soared out of the picture, appeared again minutes later, zooming in from the other direction in two flights of four ships and three.

"Come on!" Sophia cried over her shoulder, irising the door and plunging from the room. Temple followed at her heels but her Jupiter trained muscles pushed her lithe legs in long, powerful strides and soon she outdistanced him. By the time he reached the armaments vault, breathless, she was seated at the single gun-emplacement, her fingers on the controls.

"Watch the viewing screen and tell me how we're doing," Sophia told him, not taking her eyes from the dials and levers.

Temple watched, fascinated, saw a thin pencil of radiant energy leap out into space, missing one of the ships by what looked like a scant few miles. He called the corrective azimuth to her, hardly surprised by the way his mind had absorbed and now could use its new-found knowledge.

Temple understood and yet did not understand. For example, he knew the station had but one gun and Sophia sat at it now, yet in certain ways it didn't make sense. Could it cover all sectors of space? His mind supplied the answer although he had not been aware of the knowledge an instant before: yes. The space station did not merely rotate. Its surface was a spherical projection of a moving Moebius strip and although he tried to envision the concept, he failed. The weapon could be fired at any given point in space at twenty second intervals, covering every other conceivable point in the ensuing time.

Sophia was firing again and Temple watched the thin beam leap across space. "Hit!" he roared. "Hit!"

Something flashed at the front end of the lead ship. The light blinded him, but when he could see again only six ships remained in space—casting perfect shadows on the Andromeda Galaxy! The source of light, Temple realized triumphantly, was out of range, but he could picture it—a glowing derelict of a ship, spewing heat, light and radioactivity into the void.

"One down," Sophia called. "Six to go. I like your American expressions. Like sitting ducks—"