"The Martians tested us," she explained. "They're masters of the mind. I guess they've been grinding along through the evolutionary mill a darn long time, longer than we could estimate now. They learned the horror we're capable of from the first ship—the Conquerors, the climbers. The Martians knew more like them would come and go on into space, killing, destroying for no other reason than their own sickness. Being masters of the mind, the Martians are also capable of hypnosis—no, that's not really the word, only the closest our language comes to naming it. Suggestion so deep and strong that it seems real to one human or a million or a billion; there's no limit to the number that can be influenced. What the people who came off those ships saw wasn't real. It was partly what the Martians wanted them to see and feel—but most of it, like the desire to climb the mountain, was as much a part of the Conquerors' own psychic drive as it was the suggestion of the Martians."
She waved her arm slowly to describe a peak. "The Martians made the mountain real. So real that it could be seen from space, measured by instruments ... even photographed and chipped for rock samples. But you'll see how that was done, Bruce, and realize that this and not the mountain of the Conquerors is the reality of Mars. This is the Mars no Conqueror will ever see."
They walked toward the ugly red mound that jutted above the green. When they came close enough, he saw the bodies lying there ... the remains, actually, of what had once been bodies. He felt too sickened to go on walking.
"It may seem cruel now," she said, "but the Martians realized that there is no cure for the will to conquer. There is no safety from it, either, as the people of Earth and Venus discovered, unless it is given an impossible obstacle to overcome. So the Martians provided the Conquerors with a mountain. They themselves wanted to climb. They had to."
He was hardly listening as he walked away from Helene toward the eroded hills. The crew members of the first four ships were skeletons tied together with imperishably strong rope about their waists. Far beyond them were those from Mars V, too freshly dead to have decayed much ... Anhauser with his rope cut, a bullet in his head; Jacobs and Marsha and the others ... Terrence much past them all. He had managed to climb higher than anyone else and he lay with his arms stretched out, his fingers still clutching at rock outcroppings.
The trail they left wound over the ground, chipped in places for holds, red elsewhere with blood from torn hands. Terrence was more than twelve miles from the ship—horizontally.
Bruce lifted Marsha and carried her back over the rocky dust, into the fresh fragrance of the high grass, and across it to the shade and peace beside the canal.
He put her down. She looked peaceful enough, more peaceful than that other time, years ago, when the two of them seemed to have shared so much, when the future had not yet destroyed her. He saw the shadow of Helene bend across Marsha's face against the background of the silently flowing water of the cool, green canal.
"You loved her?"