Hendricks began to scratch in the ash. Tasso stood by him, watching the motion of the rock. Hendricks was sketching a crude lunar map.

“This is the Appenine range. Here is the Crater of Archimedes. The Moon Base is beyond the end of the Appenine, about two hundred miles. I don’t know exactly where. No one on Terra knows. But when you’re over the Appenine, signal with one red flare and a green flare, followed by two red flares in quick succession. The Base monitor will record your signal. The Base is under the surface, of course. They’ll guide you down with magnetic grapples.”

“And the controls? Can I operate them?”

“The controls are virtually automatic. All you have to do is give the right signal at the right time.”

“I will.”

“The seat absorbs most of the take-off shock. Air and temperature are automatically controlled. The ship