To a world second only to Venus in its technical accomplishments—and some said not even second—to a world rich in material wealth, haughty with its knowledge, and complacent in the contemplation of its lavish fighting forces, came the shadow of the invader. One moment its natives were secure as they had always been behind the ringing strength of their ninety ships in orbit—and then enemy craft were upon them, making runs across the skies of their planet, bombing them with—what?

No, Newton was never to forget. But that came afterward.

To the men in the five ships, it was the here and now that counted. Their first run across the rich world below them seemed hardly more than another exercise. The ninety ships were there—as well as a host of other spacecraft. They—or as many of them as were not occluded by the body of the planet—registered on the instruments of the Freilander ships. But that was all. Even the second run was almost without incident. But by the time Donal’s leading ship came through for the start of the third run, Newton was beginning to buzz like a nest of hornets, aroused.

The sweat was running freely down Donal’s face as they broke into the space surrounding the planet; and it was not tension alone that was causing it. The psychic shocks of five phase shifts were taking their toll. Halfway in their run there was a sudden sharp tremor that shook their small white-walled world that was the control room, but the ship continued as if unhurt, released its second torpedo and plunged into the safety of its sixth phase shift.

“Damage?” called Donal—and was surprised to hear his voice issue on an odd croaking note. He swallowed and asked again, in a more normal, controlled tone. “Damage?”

“No damage—” called an officer sharply, from the control panel. “Close burst.”

Donal turned his eyes almost fiercely back onto the scene in the Eye. The second ship appeared. Then the third. The fourth. The fifth.

“Double up this time!” ordered Donal harshly. There was a short minute or two of rest and then the sickening wrench of the phase shift again.

In the Eye, its magnification jumping suddenly, Donal caught sight of two Newtonian ships, one planetward, the other in a plane and at approximately two o’clock to the line of the bombing run they had begun.

“Defensive—” began Donal; but the gun crews had waited for no order. Their tracking has been laid and the computers were warm. As he watched, the Newtonian ship which was ahead and in their plane opened out like a burst balloon in slow motion and seemed to fall away from them.

—Another phase shift.