The four men now wore Argentine combat fatigues with the insignia of the Ninth Brigade and their trademark maroon berets. The Ninth was a well-trained and -outfitted paramilitary unit that answered only to General Coraz+|n. In other words, a death squad.

Pretending to be a Ninth Brigade officer, Cabrillo knew he would be able to talk them into or out of any situation that could arise.

He stood at the RHIB's helm, wearing aviator-style glasses favored by members of the Ninth, his beret at a cocky angle on his head. Behind him, the twin outboards threw up a volcanic wall of white froth while the bow planed over the still surface like a rocket. Mike and Murph stood at his sides, Heckler and Koch machine pistols, a Ninth Brigade staple, slung across their backs. Jerry was still curled up on the fiberglass floorboards like a dog, somehow able to sleep despite the motor's roar.

The speedometer quivered just below forty miles per hour.

Twenty minutes downriver, they came to their first village. It was impossible to tell how long ago it had been destroyed the amount of vegetation creeping into the burned-out shells of thatched huts led Juan to think months rather than weeks. Land behind the village that had been cleared for agriculture was also succumbing to the jungle's intractable advance.

I know what those guys must have felt going upriver in Apocalypse Now, Mike said.

There were no bodies lying on the ground animals had seen to that shortly after the assault but the savagery was still in clear abundance. The hamlet's score of cement-block buildings had been destroyed by high explosives. Chunks of concrete had been blown as far as the river's edge, and the few remaining sections of wall were riddled with machine-gun holes. There were countless impact craters from the mortar fire used to drive the frightened people into their fields, where the Argentines would have set up a perimeter picket of men. The villagers would have raced into a slaughter.

Good God, Murph gasped as they continued past. Why? Why did they do this?

Ethnic cleansing, Juan replied, his mouth a tight, grim line. This far north the villagers were probably Indians. Intel reports I've seen say the government in Buenos Aires wants to eradicate the last few pockets of natives remaining in the country. And to give you an idea of the characters we're impersonating he nodded in the direction of the little town that's most likely Ninth Brigade handiwork.

Lovely, Mike spat. He'd tucked his beret into a shoulder epaulet, so his fine hair blew free around his head.

Same thing's going on in the cities and towns. Anywhere they find natives, they drag them out and ship them off to either labor camps here in the Amazon or they just simply disappear. This place is a mix of Nazi Germany and Imperial Japan.

How many Indians are left?

There were about six hundred thousand before the coup. God only knows how many have already been killed, but if this regime stays in power for a few more years, they're all going to end up dead.

They passed a ferryboat, lumbering its way slowly upstream. It was big enough for eight vehicles, and maybe forty passengers on its upper deck. The trucks aboard were all painted in camouflage colors, and the men lining the rail were soldiers. They waved over at the speeding RHIB, shouting greetings in Spanish. Keeping in character, the three men standing at the helm didn't deign to respond. When the Argentine soldiers were close enough to recognize the maroon berets, their happy calls fell to instant silence, and most of them suddenly had the need to see what was happening on the other side of the old craft.

There was little other traffic on the river, mostly hand-built pirogues with single paddlers working along the bank in search of fish. Juan felt bad when they were caught up in the RHIB's churning wake, but slowing down would have been the last thing a Ninth Brigader would do. Truth of it was, they probably would have aimed for the dugout canoes and rammed their occupants under the water.

Two and a half hours of hard running down the river brought them to a tributary about half the size of the main branch, the Rio Rojo, and because of the high iron content in the soils upstream the water was indeed a reddish brown, like a bloody stain that spread into the current. Pulaski was awake by now, and he and Mike had been scanning the river for any sign that they were being watched. There was nothing but the river and the jungle, which was a solid wall of intertwined vegetation.

Clear, Mike called over the engines' growl.

Clear, Jerry echoed at the bow, and lowered his binoculars.

Juan cut power just enough to make the sharp turn, and opened the throttles again as soon as the bow pointed upstream. The Rio Rojo was less than fifty yards wide, and the towering jungle seemed to meet overhead, filtering the sunlight with a greenish tinge. It was like they were making their way up a tunnel. Their wake caromed off the dirt banks, eroding clots of mud that fell into the water and dissolved.

They started upstream, keeping the speed down because, in less than five minutes, they came across an expected towboat hauling logs down from the highlands. The boat was a wooden-hulled, bow-heavy scow with black smoke belching from its exhaust and more smoke coiling from the engine housing at the stern. The tree trunks were left floating in the water with the perimeter logs chained together to keep the whole mass intact. Cabrillo estimated there were at least two hundred twenty-foot lengths of what looked to him to be mahogany. He figured a larger load would be too cumbersome in such a narrow river.

No radio mast, Mark Murphy said.

Probably has a sat phone, Juan replied. But I'm not worried about them reporting us. He can tell we're Ninth Brigade, and he won't want any trouble from us.

They stayed far to the right side of the channel as they passed the lumber boat. Neither crew made any gesture of greeting. In fact, the tug's three-man crew kept their eyes pointed decidedly downstream the entire time.

Once clear, Juan opened the throttles further, but had to slow again just moments later. Another nearly identical boat appeared ahead. This one was making its way around a tight bend and was well into Cabrillo's side of the river. Tradition would be for Juan to idle his boat until the floating logjam made its turn and straightened out. But arrogant soldiers of an elite paramilitary group wouldn't care one bit about riverine customs.

In Spanish, Juan shouted, Stop where you are and let us pass.

I cannot, the boat's captain yelled back.

He hadn't bothered to look to see who was addressing him. He was watching the shifting mass of logs edging closer and closer to the inside bank. If they rammed into the shore, it was possible that his boat wouldn't have the power to pull them free. It wasn't an uncommon occurrence, and it could take hours for the crew to unchain some of the logs from the bundle in order to free themselves and hours more to set the load right again.

I'm not asking, I'm telling, Juan said, letting anger drop his voice to a snarled hiss.

One of the deckhands tapped the boat's captain on the shoulder. The man finally looked over at the RHIB, with its crew of armed soldiers in maroon berets. He went a little pale under his two days' growth of beard.

Okay, okay, he said with the resignation of the powerless in the face of oppression. He throttled back, and the current immediately slammed his load into the riverbank. A dozen logs as thick around as oil barrels were thrown onto shore. The impact snapped a section of chain, hurling bits of its rusted links through the air. The oily workboat slowly came across the current, pressing its load deeper into the bank while at the same time opening the channel for Cabrillo and the RHIB. Logs that had broken free were already drifting downstream.