"What happened?" Mel asked.
"I don't know," said the other, pressing a hand to the side of his head. "It felt as if something had hit me in the head, now it aches a little. Guess I'll have to do something about this cold." He left, still holding a hand to his head.
It was obvious that his newly discovered power could be dangerous so Mel proceeded with his experimenting more slowly. Jenkins was still his only guinea pig and he learned to gage just when the assistant's resistance was about to collapse and reduce the intensity of his own probing accordingly. He was disappointed to discover that either it was impossible to read another's mind or that he hadn't discovered the method. However, he could roughly direct the other's actions. Jenkins had been becoming increasingly nervous so Mel became even more subtle in his experimenting. He'd wait until the assistant was idle and then either make him cross his legs or put one or the other of his hands up to scratch his head. He finally became so smooth and accurate in his control that it lost most of its interest as a means of recreation.
He began to extend his range. Wood and concrete offered no impedance at all. Metal, with the exception of aluminum, cut the intensity roughly about half. Jenkins was in Mel's room when he first probed Neil's brain. His partner's mental resistance was much higher and he pressed slowly but methodically so that the break-through would be controlled. To his surprise, he found that Neil's brain was much easier to control than that of Jenkins had been.
It was about this time that he found he was beginning to master the sharing of his host's eyesight. While he might not be able to read another's mind, it would be a big help to know what someone else was doing or what he was looking at. He tried searching outside the building but found nothing, other than an occasional small spot of resistance that would probably indicate a small animal. This wasn't surprising since the lab was hidden in caves in a secluded canyon that had no attraction to the casual wanderer.
His next concentration was on the animals he encountered every so often. His first few attempts resulted in sudden and complete collapse of resistance and he sadly concluded that his control had been too powerful and resulted in their death. He tried more carefully and was overjoyed when he established contact with their visual senses. The sensation was almost as over-powering as if he had suddenly gained eyesight of his own. For the first time in months, he revelled in seeing the country around the outside of the lab and never before had he thought it so beautiful. Once, while in control of a rabbit's mind, he saw an eagle flying overhead. He quickly transferred and, before the bird flew far enough away to make control impossible, he enjoyed the far-reaching vision of the bird's eyes as it swept on towards some hidden nest. He could even see the city in the distance.
Several times he neglected to notice Neil's entrance into the room, so absorbed did he become in his newly discovered, if second-hand, freedom.
"What's happened to you anyway?" demanded his erstwhile partner one day after he had had to repeat a question. "Half of the time lately you're lost in a world of your own. What're you up to anyway?"
"Nothing," replied Mel, suddenly alert to any new danger, although confident he could take care of himself now. "I was just going over some new equations I've been formulating as a hobby. Now that you've taken away my cart, there isn't much to keep me occupied you know. You don't begin to bring enough problems. What's wrong?"