After a moment he sighed again. "There's a hole. On a[Pg 117] plane surface that catches the Sun. A lousy damned round little impossible hole." [Pg 117] "Those hills," Burton observed, "must be thousands of feet thick." The argument lasted all the way back to the ship. Janus, holding out for his belief that the whole thing was of religious origin, kept looking around for Martians as if he expected them to pour screaming from the hills. Burton came up with the suggestion that perhaps the holes had been made by a disintegrator-ray. "It's possible," Allenby admitted. "This might have been the scene of some great battle—" "With only one such weapon?" I objected. Allenby swore as he stumbled. "What do you mean?" "I haven't seen any other lines of holes—only the one. In a battle, the whole joint should be cut up. That was good for a few moments' silent thought. Then Allenby said, "It might have been brought out by one side as a last resort. Sort of an ace in the hole." I resisted the temptation to mutiny. "But would even one such weapon, in battle make only one line of holes? Wouldn't it be played in an arc against the enemy? You know it would." "Well—" "Wouldn't it cut slices out of the landscape, instead of boring holes? And wouldn't it sway or vibrate enough to make the holes miles away from it something less than perfect circles?" "It could have been very firmly mounted." "Hugh, does that sound like a practical weapon to you?" Two seconds of silence. "On the other hand," he said, "instead of a war, the whole thing might have been designed to frighten some primitive race—or even some kind of beast—the hole out of here. A demonstration—" "Religious," Janus grumbled, still looking around. We walked on, passing the cactus on the low ridge.