I hesitated. "Oh, Hadron of Hastor, please do not leave me here without you," she said.

I could not resist her. "Very well, then," I said, "come with me. I would rather have you than any other," and so it was that Tavia replaced one of the padwars on the Jhama, much to the officer's chagrin.

Before entering the Jhama I turned again to the old odwar. "If we are successful," I said, "a number of Tul Axtar's battleships will move slowly toward the Helium line beneath signals of surrender. Their crews will have been destroyed. Have boarding parties ready to take them over."

Naturally every one aboard the battleship was intensely interested in the Jhama, though all that they could see of her was the open hatch and the eye of the periscope. Officers and men lined the rail as we went aboard our invisible craft and as I closed the hatch, a loud cheer rang out above me.

My first act thoroughly evidenced my need of Tavia, for I put her at the after turret in charge of the rifle there, while one of the padwars took the controls and turned the prow of the Jhama toward the Jaharian fleet.

I was standing in a position where I could watch the changing scene upon the ground glass beneath the periscope and when a great battleship swung slowly into the miniature picture before me, I directed the padwar to lay a straight course for her, but a moment later I saw another battleship moving abreast of her. This was better and we changed our course to pass between the two.

They were moving gallantly toward the fleet of Helium, firing their big guns now and reserving their disintegrating ray rifles for closer range. What a magnificent sight they were, and yet how helpless. The tiny, invisible Jhama, with her little rifles, constituted a greater menace to them than did the entire fleet of Helium. On they drove, unconscious of the inevitable fate bearing down upon them.

"Sweep the starboard ship from stem to stern," I called to Tavia. "I will take this fellow on our port," and then to the padwar at the controls, "Half speed!"

Slowly we passed their bows. I touched the button upon my rifle and through the tiny sighting aperture I saw the crew dissolve in the path of those awful rays, as the two ships passed. We were very close—so close that I could see the expressions of consternation and horror on the faces of some of the warriors as they saw their fellows disappear before their eyes, and then their turn would come and they would be snuffed out in the twinkling of an eye, their weapons and their metal clattering to the deck.

As we dropped astern of them, our work completed, I had the padwar bring the Jhama about and alongside one of the ships, which I quickly boarded, running up the signal of surrender. With the death of the officer at her controls she had fallen off with the wind, but I quickly brought her up again and, setting her at half speed, her bow toward the ships of Helium, I locked the controls and left her.