cast him off. He was dead, his fragile Martian skull split open by my blow.

There had been no alarm. The slight noise we made had not been heard down on the busy deck. Anita and I crouched by the floor. From the deck all this part of the room could not be seen.

"Dead!"

"Oh, Gregg—"

It forced our hand. I could not wait now for Miko to come. But I could flash the Earth signal now, and then we would have to make our run to escape.

Abruptly I remembered that light down at the crater-base! I kept Anita out of sight on the floor and went cautiously to a window. The deck was in turmoil with brigands moving about excitedly. Not because of what had happened in our tower signal room; they were unaware of that.

Miko's signals were showing! I could see them now plainly, down at the crater-base. A group of hand-lights and a small waving helio-beam.

And they were being answered from the ship! Potan was on the deck—a babble of voices, above which his rose with roars of command. At one of the dome windows a brigand with a hand search-beam was sending its answering light. And I saw that Potan was working over a deck telescope-finder.

It had all come so suddenly that I was stunned. But I did not wait to read the signals. I swung back at Anita.

"It's Miko! And they are answering him! Get your helmet; I'll try firing the projector."