slippery glass.
"Force field, all right," Kirk murmured. "It seems harmless enough. In fact, if it's designed to do anything, it's to keep those inside undamaged if they try to escape. Absorbs impact rather than resisting it bluntly."
"The bars of a cage are just as harmless," McCoy observed pointedly, "unless you're viewing them from the inside. And we are definitely on the inside." He moved up to the force field. "Let's see if this field is impervious to everything." He cupped his hands and shouted.
"Hey, listen, let us out of here . . . we're as curious about you as you are about us, blast it!"
Something tickled his head.
"A wasteful use of energy, Doctor," Spock commented. "I believe they can hear us quite well without your shouting." He eyed them closely. "I received definite hints of thought projections. I understand that humans are not as sensitive, but did either of you experience anything just now?"
Both Kirk and McCoy nodded.
Spock looked satisfied. "I thought I had detected similar impressions earlier, but could not be certain. I am now. Clearly, they are purely telepathic."
Kirk looked puzzled. "We've encountered telepathic races before, Mr. Spock, and had no trouble communicating with them. Why can't we get a grip on any of the local transmissions? I have the feeling I can almost see an image forming in my mind, but it never becomes stronger than 'almost.' "
"Analysis of the impressions I have received thus far, Captain, would appear to indicate that their thoughts move at a rate far beyond our comprehension. We can only grasp at a fleeting image here and there. That fleeting image we barely sense probably represents many complex thoughts elaborated on at length."
"Surely we can communicate with them somehow," Kirk muttered, "even if only through bits and pieces of information."
"I do not know, Captain," a discouraged Spock mused. "The sheer rapidity of their cogitation, the incredible transport system which brought us here, certain aspects of the instrumentation we have already been exposed to—that could be as advanced compared to Federation civilization as we are to a colony of ants. There also remains the possibility that they could communicate with us and are simply not interested."
"Don't they think we've anything to say?" growled McCoy. "If that's so, they're sadly mistaken. I've got plenty to say to them. Their methods of greeting visitors . . ." His voice trailed off.
"Wait a minute . . . what were they doing out among those other creatures? We never did figure out all those environments."
"You will recall, Doctor," reminded Spock, "that we recognized at least two species from vastly different worlds and ecologies, and we landed in yet another ecology altogether. Remember how we felt that the environments we were passing through appeared not only unrelated to one another but to this world?
"A civilization this advanced might enjoy transforming part of their own planet to"—he hesitated over his choice of terms—"more conveniently provide for their specimens."
"Are you trying to say that we beamed down into some kind of local zoo?"
"That is precisely my theory, Doctor."
"Maybe they'll be kind enough to explain," said Kirk, turning to face the alcove barrier. "They're coming back."
None of them could tell whether the three Lactrans approaching them now were the same three that had brought them there. They inched smoothly across the chamber floor, moving easily via a still unseen, unknown method of transportation, concealed beneath rippling skirts of gray flesh.
Stopping just outside the alcove, the three aliens regarded those within in contemplative silence.
"Examining us," Kirk whispered idly.
"Well, I'm sick of it!" McCoy snorted. He moved up to the force field and gestured emphatically at their captors. "Look, we're as smart as you—maybe a little smarter in some areas—and we don't take kindly to being locked up. I think it's about time you—"
One of the colored beams from