I could see that Harry was pleased. Unnerved too, and horribly shaken. But he was pleased that I had turned to him as a friend I could trust. When you can't depend on life for anything else it's good to know you have a friend.

I brushed sand from my trousers and got up. "Come on," I said. "We'll take a look."

It was an ordeal for him. His face twitched and his eyes wavered. He knew I hadn't lied about the scream. If a single scream could unnerve me that much it had to be bad.

We walked to the well in complete silence. There were shadows everywhere, chill and forbidding. Almost like people they seemed, whispering together, huddling close in ominous gossipy silence, aware of what we would find.

It was a sixty-foot walk from the fire to the well. A walk in the sun—a walk in the bright hot sun of Mars, with utter horror perhaps at the end of it.

The horror was there. Harry made a little choking noise deep in his throat, and my heart started pounding like a bass drum.

II

The man on the sand had no top to his head. His skull had been crushed and flattened so hideously that he seemed like a wooden figure resting there—an anatomical dummy with its skull-case lifted off.

We looked around for the skull-case, hoping we'd find it, hoping we'd made a mistake and stumbled by accident into an open-air dissecting laboratory and were looking at ghastly props made of plastic and glittering metal instead of bone and muscle and flesh.

But the man on the sand had a name. We'd known him for weeks and talked to him. He wasn't a medical dummy, but a corpse. His limbs were hideously convulsed, his eyes wide and staring. The sand beneath his head was clotted with dried blood. We looked for the weapon which had crushed his skull but couldn't find it.