ut suddenly a fiercer pain swept into my consciousness—the pain of gasping breath forcing air through a tortured gullet into suffocating lungs.

I struggled up into the fierce illumination. From a sitting position I saw Abud, now clearly visible as in midday, craning his head way back. I looked, too—and, in spite of my stabbing gasps for air, jumped to my feet. The search-rays from the scout planes were focussed directly on us!

I knew what that meant. The sight of us was even then being cast upon the 2-RX visor-screen in the Central Control Station. The devilish master machine was even then manipulating the proper buttons. We had not a second to lose!

My strangled throat hurt horribly, but I managed a hoarse yell, "Run!" and I tottered to where Keston yet lay, bathed in the deadly illumination, unmoving.

There was a snarl of animal fear from Abud, and he started to run, wildly, with never a backward glance at us.

Even in my own fear, expecting each instant the crash of terminite about me, I managed to hurl a last word at the fleeing figure. "Coward!" That relieved my feelings considerably.

I tottered over and tugged at Keston. He was limp. I looked up. Hundreds of planes were converging overhead; the night was a criss-cross of stabbing search-rays. I lifted my friend and slung him across my shoulder. Every exertion, every move, was accompanied by excruciating agony, but I persevered. Abud was already halfway to the tunnel, running like mad.

Then, what I had dreaded, happened. There came a swoosh through the night, a dull thud, a blinding flash and roar that paled the search-rays into insignificance. The first terminite bomb had been dropped!