"Right."

Harrell slipped the cool bulk of the thought-helmet over his head and signalled to the scientist, who pulled the actuator switch. Harrell shuddered as psionic current surged through him; he stiffened, wriggled, and felt himself glide out of his body, hover incorporeally in the air between his now soulless shell and the alien bound opposite.

Remember, you volunteered, he told himself.

He hung for a moment outside the alien's skull; then, he drifted downward and in. He had entered the alien's mind. Whether he would emerge alive, and with the troop-deployment data—well, that was another matter entirely.

The patrol-ships of the Terran outpost on Planetoid 113 had discovered the alien scout a week before. The Dimellian spy was lurking about the outermost reaches of the Terran safety zone when he was caught.

It wasn't often that Earth captured a Dimellian alive and so the Outpost resolved to comb as much information from him as possible. The Earth-Dimell war was four years old; neither side had scored a decisive victory. It was believed that Dimell was massing its fleets for an all-out attack on Earth itself; confirmation of this from the captured scout would make Terran defensive tactics considerably more sound.

But the Dimellian resisted all forms of brainwashing until Phelps, the Base Psych-man, came forth with the experimental thought-helmet. Volunteers were requested; Harrell spoke up first. Now, wearing the thought-helmet, he plunged deep into the unknown areas of the Dimellian's mind, hoping to emerge with high-order military secrets.

His first impression was of thick grey murk—so thick it could be cut. Using a swimming motion, Harrell drifted downward, toward the light in the distance. It was a long way down; he floated, eerily, in free-fall.

Finally he touched ground. It yielded under him spongily, but it was solid. He looked around. The place was alien: coarse crumbly red soil, giant spike-leaved trees that shot up hundreds of feet overhead, brutal-looking birds squawking and chattering in the low branches.

It looked just like the tridim solidos of Dimell he had seen. Well, why not? Why shouldn't the inside of a man's mind—or an alien's, for that matter—resemble his home world?