It was cool in the mountains at night, even in summer. A distant coyote howled at the moon. There was the occasional whisper from a deer moving through the trees, and the only sound associated with man was the distant noise of jets. The clear night made for surprisingly good visibility, even without the low-light goggles with which they were normally equipped. In the thin mountain air, the stars overhead didn't sparkle, but shone as constant, discrete points of light. Ordinarily Chavez would have noticed the beauty, but this was a work night.

Ramirez and the rest of the squad were wearing four-color camouflage fatigues of Belgian manufacture. Their faces were painted with matching tones from sticks of makeup (understandably the Army didn't call it that) so that they blended into the shadows as perfectly as Wells' invisible man. Most importantly, they were totally at home in the darkness. Night was their best and most powerful friend. Man was a day-hunter. All of his senses, all of his instincts, and all of his inventions worked best in the light. Primordial rhythms made him less efficient at night - unless he worked very hard to overcome them, as these soldiers had. Even American Indian tribes living in close partnership with nature had feared the night, had almost never fought at night, had not even guarded their encampments at night - thus giving the U.S. Army its first useful doctrine for operations in darkness. At night man built fires as much for vision as for warmth, but in doing so reduced that vision to mere feet, whereas the human eye, properly conditioned, can see quite well in the darkness.

"Only five?"

"That's all I counted, sir."

Ramirez nodded and gestured for two more men to come forward. A few quiet orders were given. He went with the other two, moving to the right to get above the encampment. Chavez went back forward. His job was to take the sentry down, along with the one dozing at the fire. Moving quietly in the dark is harder than seeing. The human eye is better at spotting movement in the dark than in identifying stationary objects. He put each foot down carefully, feeling for something that might slide or break, thus making noise - the human ear is much underestimated. In daylight his method of moving would have appeared comical, but stealth has its price. Worst of all, he moved slowly, and Ding was no more patient than any man still in his twenties. It was a weakness against which he'd trained himself. He walked in a tight crouch. His weapon was up and ready to guard against surprise, and as the moment approached, his senses were fully alerted, as though an electric current ran across his skin. His head swiveled slowly left and right, his eyes never quite locking on anything, because when one stares at an object in the darkness, it tends to disappear after a few seconds.

Something bothered Chavez, but he didn't know what it was. He stopped for a moment, looking around, searching with all his senses over to his left for about thirty seconds. Nothing. For the first time tonight he found himself wishing for his night goggles. Ding shook it off. Maybe a squirrel or some other night forager. Not a man, certainly. No one could move in the dark as well as a Ninja, he smiled to himself, and got back to the business at hand. He reached his position several minutes later, just behind a scrawny pine tree, and eased down to a kneeling position. Chavez slid the cover off the green face of his digital watch, watching the numbers march slowly toward the appointed moment. There was the sentry, moving in a circle around the fire, never more than thirty feet from it, trying to keep his eyes turned away from it to protect his night vision. But the light reflected off the rocks and the pines would damage his perceptions badly enough - he looked straight at Chavez twice, but saw nothing.

Time.

Chavez brought up his MP-5 and loosed a single round into the target's chest. The man flinched with the impact, grasped the spot where he'd been hit, and dropped to the ground with a surprised gasp. The MP-5 made only a slight metallic clack, like a small stone rolling against another, but in the still mountain night, it was something out of the ordinary. The drowsy one by the fire turned around, but only made it halfway when he too was struck. Chavez figured himself to be on a roll and was taking aim on one of the sleeping men when the distinctive ripping sound of Julio's squad automatic weapon jolted them from their slumber. All three leapt to their feet, and were dead before they got there.

"Where the hell did you come from?" the dead sentry demanded. The place on his chest where the wax bullet had struck was very sore, all the more so from surprise. By the time he was standing again, Ramirez and the others were in the camp.

"Kid, you are very good," a voice said behind Chavez, and a hand thumped down on his shoulder. The sergeant nearly jumped out of his skin as the man walked past him into the encampment. "Come on."

A rattled Chavez followed the man to the fire. He cleared his weapon on the way - the wax bullets could do real harm to a man's face.

"We'll score that one a success," the man said. "Five kills, no reaction from the bad guys. Captain, your machine-gunner got a little carried away. I'd go easier on the rock and roll; the sound of an automatic weapon carries an awful long way. I'd also try to move in a little closer, but - I guess that rock there was about the best you could do. Okay, forget that one. My mistake. We can't always pick the terrain. I liked your discipline on the approach march, and your movement into the objective was excellent. This point man you have is terrific. He almost picked me up." The last struck Chavez as faint praise indeed.

"Who the fuck are you!" Ding asked quietly.

"Kid, I was doing this sort of thing for real when you were playing with guns made by Mattel. Besides, I cheated." Clark held up his night goggles. "I picked my route carefully, and I froze every time you turned your head. What you heard was my breathing. You almost had me. I thought I blew the exercise. Sorry. My name's Clark, by the way." A hand appeared.

"Chavez." The sergeant took it.

"You're pretty good, Chavez. Best I've seen in a while. I especially like the footwork. Not many have the patience you do. We could have used you in the 3rd SOG." It was Clark's highest praise, and rarely given.

"What's that?"

A grunt and a chuckle. "Something that never existed - don't worry about it."

Clark walked over to examine the two men Chavez had shot. Both were rubbing identical places on their flak jackets, right over their hearts.

"You know how to shoot, too."

"Anybody can hit with this."

Clark turned to look at the young man. "Remember, when it's for real, it's not quite the same."

Chavez recognized genuine meaning in that statement. "What should I do different, sir?"

"That's the hard part," Clark admitted as the rest of the squad approached the fire. He spoke as a teacher to a gifted pupil. "Part of you has to pretend it's the same as training. Another part has to remember that you don't get many mistakes anymore. You have to know which part to listen to, 'cause it changes from one minute to the next. You got good instincts, kid. Trust 'em. They'll keep you alive. If things don't feel right, they probably aren't. Don't confuse that with fear."

"Huh?"

"You're going to be afraid out there, Chavez. I always was. Get used to the idea, and it can work for you 'stead of against you. For Christ's sake, don't be ashamed of it. Half the problem out in Indian Country is people afraid of being afraid."

"Sir, what the hell are we training for?"

"I don't know yet. Not my department." Clark managed to conceal his feelings on that score. The training wasn't exactly in accord with what he thought the mission was supposed to be. Ritter might be having another case of the clevers. There was nothing more worrisome to Clark than a clever superior.