"Our civilization," continued Zezdon Afthen, "is built largely on the knowledge of the mind. We cannot have criminals, for the man who plots evil is surely found out by his thoughts. We cannot have lying politicians and unjust rulers. "It is a peaceful civilization. The Ancient Masters feared and hated War with a mighty aversion. But they did not make our race cowards, merely peaceful intelligence. Now we must fight for our homes, and my race will fight mightily. But we need weapons. "But my story has little to do with our race. I will tell the story of our civilization and of the Ancient Ones later when the time is more auspicious. "Four months ago, our mental vibration instruments detected powerful emanations from space. That could only mean that a new, highly intelligent race had suddenly appeared within a billion miles of our world. The directional devices quickly spotted it as emanating from the third planet of our system. Zezdon Fentes, with my aid, set up some special apparatus, which would pick up strong thoughts and make them visible. We had used this before to see not only what an enemy looked upon, but also what he saw in that curious thing, the eye of the mind, the vision of the past and the future. But while the thought-amplification device was powerful, the new emanations were hard to separate from each other. "It was done finally, when all but one man slept. That one we were enable to tune sharply to. After that we could reach him at any time. He was the commander. We saw him operate the ship, we saw the ship, saw it glide over the barren, rocky surface of that world. We saw other men come in and go out. They were strange men. Short, squat, bulky men. Their arms were short and stocky. But their strength was enormous, unbelievable. We saw them bend solid bars of steel as thick as my arm. With perfect ease! "Their brains were tremendously active, but they were evil, selfishly evil. Nothing that did not benefit them counted. At one time our instruments went dead, and we feared that the commander had detected us, but we saw what happened a little later. The second in command had killed him. "We saw them examine the world, working their way across it, wearing heavy suits, yet, for all the terrific gravity of that world, bouncing about like rubber balls, leaping and jumping where they wanted. Their legs would drive out like pistons, and they soared up and through the air. "They were tired while they made those examinations, and slept heavily at night. "Then one night there was a conference. We saw then what they intended. Before we had tried desperately to signal them. Now we were glad that we had failed. "We saw their ship rise (in the thoughts of the second in command) and sail out into space, and rush toward our world. The world grew larger, but it was imperfectly sketched in, for they did not know our world well. Their telescopes did not have great power as your electric telescopes have.