He nodded to himself and brought his encrypted com on-line. The first step was to call home and get Mother’s research teams started finding the contacts he needed.

The subterranean rumble of an earthquake shook the jungle as the enormous doors covering the depot’s vehicle ramp swept ponderously wide for the first time in eighty years. The patient, insatiable incursions of creepers and small trees had mounded two meters of spongy earth over those doors, and “birds” screamed in alarm as the very ground parted with a huge tearing sound. Trees-some of them ten and twenty meters tall-toppled in slow motion as the gaping wound snapped roots like threads, and then, with the rumble of mighty engines, the squeak of sprockets, and a grating clash of treads, Nike moved majestically into the light.

The alloy leviathan paused for a moment, optic heads swiveling to scan its surroundings, and Paul Merrit felt a thrill he hadn’t felt in years as he rode Nike’s crash couch. No self-aware Bolo needed an on-board commander, but there was always an indescribable sense of communion-an adrenaline-charged exhilaration-the first time an officer of the Dinochrome Brigade rode his command’s unstoppable power, and that feeling had never been stronger than it was today, for Nike was like no Bolo he had ever commanded. Marina Stavrakas’ unauthorized modifications to the Descartes Team’s original brain box design had gone far deeper than he’d first realized. She hadn’t stopped with making Nike fully autonomous; she’d taken the step no other Bolo tech had dared take even yet and given her creation-her child-genuine emotions. Nike wasn’t “just” a machine, however magnificent; she was a person, and Merrit could feel her delight as direct sunlight bathed her hull at long last.

She stood a moment longer, the humming rumble of her idling engines vibrating through her mammoth hull like the purr of some enormous cat, then moved forward and pivoted regally to port. Her designers had given her the usual Bolo “wide track” suspension, and no less than eight separate tread systems, each with its own power train and tracks five meters wide, supported her massive bulk. Independent quadruple fore and aft suspensions took her weight, spreading it out to reduce ground pressure to an absolute minimum, and even so her tracks sank well over a meter into the damp, rich soil. She forged ahead, plowing through the jungle like the juggernaut she was, and forest titans toppled like straws before her while occasional outcrops of solid rock powdered under her treads.

Merrit said nothing. Nike knew where they were going-not that it would be any more than a brief jaunt around the depot’s immediate area-and he had no wish to intrude upon her pleasure. No doubt the psych types would be all hot and bothered over that, as well, but Paul Merrit had had it up to the eyebrows with Brigade Psych Ops, and their potential consternation mattered not at all to him. No, that wasn’t quite true. He would be delighted if it caused them all to drop dead of cardiac arrest on the spot.

Nike was moving at barely twenty kph, far too slow a speed to require his couch’s independent shock absorbers or crash frame, but he felt the gentle undulation of her suspension and grinned as he cocked the couch back in its gimbals. If anyone asked (not that they were likely to), he could justify his actions easily enough. Unit Zero-Zero-Seven-Five NKE had been on secondary power from the depot’s systems for eight decades. A test of its running gear and fusion plants was long overdue, and if he had other motives of his own, those were his business, not Psych Ops’!

Another huge tree toppled, and, as it fell, one of the large, scaled, lizard cats, the most feared predators of Santa Cruz, leapt suddenly into sight. It crouched before them, staring in disbelief at the enormous intruder into its domain… then screamed its challenge and charged the moving mountain of alloy.

Merrit couldn’t believe it. A lizard cat was four sinuous meters of vicious fighting power, the absolute ruler of Santa Cruz’s jungles, but surely not even one of them could think it could stop a Bolo! Yet the cat kept coming. He opened his mouth, but Nike halted abruptly on her own, before he could get the order out. The main fire control screen was slaved to her forward optical head, and Merrit frowned as it swept past the lizard cat now ripping futilely at one of her stopped treads with eight-centimeter claws. Ranging bars flickered, closing in on something in the center of the display, and he inhaled in surprise as he realized what that something was.

Four scaled shapes, far smaller than the monster trying to savage Nike, lay revealed where the roots of the falling tree had torn out the side of a subterranean den. They were almost as large as Merrit himself, perhaps, yet that was tiny compared to a mature lizard cat, and they turned blind, terrified eyes towards the snarling fury of their dam.

The display focused on them for a moment, and then Nike moved slowly backward. The lizard cat tried to fling itself on the moving tread, only to tumble backward with a squall of pain as the Bolo brought up her kinetic interdiction battle screen. She must have it on its lowest possible power setting, since it hadn’t splattered the cat all over the jungle, but it was sufficient to throw the scaly mother safely away from her treads.

The lizard cat heaved herself groggily to her feet, swaying for balance, then howled in victory as the threat to her young gave ground. Nike retreated a full hundred meters, then pivoted to her left once more to circle wide, and Merrit shook his head with a wondering smile. Any other Bolo would simply have kept going. Even if it had realized the den lay in its path, that wouldn’t have mattered to it. But no other Bolo he’d ever served with would even have thought to wonder why the cat had attacked in the first place, much less acted to preserve both mother and children.

The Bolo started forward once more, skirting the den, and he patted the couch arm.

“Nice move, Nike, but how’d you guess? I just thought the critter was out of its mind.”

“I have not previously personally encountered a lizard cat,” Nike replied calmly, “but the depot’s computers are tied into the planetary data net. I have thus been able to amass considerable data on Santa Cruzan life forms, yet none of the records available to me suggested a reason for a lizard cat to attack me. I am neither edible nor small enough for it to hope to kill me; as such, it could not regard me as prey, and lizard cats are less territorial than most large predators. They are also noted for their intelligence, and, faced with a foe of my size and power, the only intelligent choice would have been for the creature to flee, yet it did not. Thus the only logical basis for its actions was that it perceived me as a threat it could not evade, yet the lizard cat itself manifestly could have evaded me. That suggested a protective reaction on its part, not one of pure aggression, and that, in turn, suggested investigation to determine the nature of that which it sought to protect.”

Merrit shook his head, eyes shining as he listened to the explanation no other Bolo would have been capable of making.

“I follow your logic,” he said, “but why stop?”

“Your tone suggests what Major Stavrakas called ‘a trick question,’ Commander. Are you, in fact, seeking to test me?”

“I suppose I am, but the question still stands. Why didn’t you just keep going?”

“There was no need to do so, Commander. No time parameter has been set for this exercise, and avoiding the creature’s den presents no inherent difficulty.”

“That’s an explanation of the consequences, Nike. Why did you even consider not continuing straight forward?”

He watched an auxiliary display as the mother lizard cat, still snarling after the threat to her cubs, retreated into her half-ruined den, and Nike moved smoothly along her way for perhaps five seconds before she replied.