"I am Eliot Leithgow—Master Scientist Eliot Leithgow. Once you knew me. Professors Geinst, Estapp and Norman, Dr. Swanson and Master Scientist Cram—do you remember me? Do you remember how once we worked together; how, long ago on our Earth, we were friends? Do you remember your old colleague, Leithgow?"

He stopped, deeply shaken. In seconds his mind sped back through the years to those five men as he had last seen them—and to two women he had met, calm-faced as their husband-scientists.... God forbid those women should ever learn of this!

Carse watched his old comrade closely, fearful of the strain this was on him.

Then came a cold, thin, mechanical voice.

"Yes, Master Scientist Eliot Leithgow. I remember you well."

The scientist strove to keep level his voice as he continued:

"Two friends and I are trapped here. Dr. Ku Sui desires my brain. He wishes to add it to——" He stammered, halted; then burst out: "If it would help you in any way, I'd give it gladly! But it couldn't, I know; it would only aid his power-mad schemes. So my friends and I must escape. And we can see now no way!

"You can hear that noise? It's very loud; men are outside each door, battering at them, and soon they must break through. How can we escape? Do you know of a way, out of your knowledge of conditions here? Will you tell me, old colleagues?"

He waited.