Twenty five thousand miles out in space, Arcot cut the acceleration. "We'll catch them now, I think," he said softly. He pushed the little red switch for an instant, then opened it. A moment before, the planet Nansal had been a huge disc behind them. Now it was a tiny thing, a full million miles away.

It took the Satorian fleet over an hour to reach them. They appeared as dim lights in the telectroscope. They rapidly became larger. Arcot had extinguished the lights, and since they were on the sunward side of the approaching ships, the Ancient Mariner was effectively invisible.

"They're going to pass us at a pretty good clip," Morey said quietly. "They've been accelerating all this time."

Arcot nodded in agreement. "We'll have to hit them as they come toward us. We'd never get one in passing."

As the ships grew rapidly in the plate, Arcot gave the order to fire!

The molecular rays slashed out toward the onrushing ships, picking them off as fast as the beams could be directed. The rays were invisible in space, so they managed to get several before the Satorians realized what was happening.

Then, in panic, they scattered all over space, fleeing madly from the impossible ship that was firing on them. They knew they had left it behind, yet here it was, waiting for them!

"Let them go," Arcot said. "We've got our specimens, and the rest can carry the word back to Sator that the war is over for them."

It was several hours later that the Ancient Mariner approached Nansal again, bringing with it two Satorian ships. By careful use of the heat beam and the molecular beam, the Earthmen had managed to jockey the two battle cruisers back to Nansal.

It was nighttime when they landed. The whole area around the city was illuminated by giant searchlights. Men were working recovering the bodies of the dead, aiding those who had survived, and examining the wreckage.