utomatics spat their leaden hail, dynol pellets flamed redly, and over all resounded the rapid drum fire of the machine gun, pouring steel-jacketed death into the confused ranks of the Mercutians.

The monster invaders had lost their heads. Even then, they could have destroyed the Earthmen with their deadly spreading rays. But the strange apparition from above had demoralized them. No one thought of fighting: flight, safety, were the only thoughts in their minds.

Flier after flier went tailspinning to horrible death while his comrades fled in all directions.

It was soon over. The greater number of the Mercutians were twisted smoldering wrecks. The few who escaped were rapidly diminishing dots in the cold starlight.

Its work finished, the rescuing space flier settled softly to the ground, in the midst of the embattled cheering Earthmen, temporarily gone insane.

The air-lock port yawned, and a slim figure darted out, straight into Hilary's outstretched arms.

"Joan!"