“I’m not getting a signal.” Cabrillo turned the phone off to conserve its battery.
“All right, you’ve shot down all of my suggestions, what’s up your sleeve?”
Juan took the light from Linc’s hand and played it along the downward-sloping tunnel that had been bored into the earth decades ago. “We see where this leads.”
“What happens if they come in after us?”
“Hope we have enough warning so we can lay an ambush.”
“Why not wait for them right here?”
“If I was leading that team, I would lob in a bunch of grenades before committing my men. We’d be mincemeat before they needed to fire a single shot. If we hung back out of grenade range, we’d be too exposed in this tunnel. Better to find a more defensible position. On the bright side, if they do bother to come after us it most likely means there’s another way out of here.”
Linc considered their options, and with a broad sweep of his arm indicated they should proceed down the subterranean passageway.
One wall of the tunnel was a long, continuous slab of stone, while the other showed signs that it had been worked by tools. The two men could walk comfortably side by side, and there was at least ten feet of headroom.
“This is a natural fissure the Japanese expanded during their occupation,” Cabrillo said as he studied the rock.
“Most likely split open by an earthquake,” Linc agreed. “They built their factory, or whatever the hell it was, where the hole reached the surface.”
Juan pointed out dark splatters on the stone floor. The spray pattern indicated it was blood—copious amounts of blood. “Gunshot.”
“More than one victim, too.”
Juan jerked the light away from the grisly tableau. His mouth was a thin, grim line.
The air temperature dropped and the humidity built as they descended deeper into the earth. It was thinking about the misery that had occurred here rather than the plummeting temperature that made Cabrillo shiver.
The tunnel wasn’t straight, but rather corkscrewed and twisted as it fell away at a gentle angle. After twenty-five minutes and more than two miles, the cave floor leveled out, and they discovered the first side chamber. The entrance was partially blocked by a minor cave-in, and the tunnel’s ceiling was a fractured mess of stone ready to collapse at any moment. This cavern, too, had been a natural geologic feature that the Japanese had expanded. The room was roughly circular, fifty feet across, with a ceiling that was at least fifteen feet high. There was nothing in the cavern except some bolts along the walls that had once carried electrical wiring.
“Administration area?” Linc wondered aloud.
“Makes sense, being the closest room to the surface.”
They found two smaller side caves before discovering a fourth in which the Japanese had left artifacts behind. This chamber had a dozen iron bunks bolted to the floor and several flimsy pressed-metal cabinets along one wall. As Juan checked the drawers, Linc examined the bedsteads.
“You wouldn’t think they would have bothered giving their prisoners beds,” Linc said.
“There’s nothing in any of these drawers.” Juan looked at Lincoln. “They needed the beds because they had to restrain their victims. Someone intentionally infected with typhus, cholera, or some type of poison gas is going to thrash around.”
Franklin snapped his hands away from the metal bunk as though he’d been burned.
They found four more side chambers like this one, some large enough to hold forty beds. They also found a small, waist-high cave entrance in the main tunnel. Juan wriggled his head and shoulders into the aperture and saw that the cave beyond dropped precipitously. At the extreme end of his light’s range, he could see the floor of the cavern littered with all sorts of unidentifiable junk. This had been a communal dump, and amid the rubbish were human bones. They had become disjointed over the decades, so Cabrillo couldn’t tell how many there were. Five hundred would be a conservative estimate.
“This place is like a slaughterhouse,” he said when he pulled himself free. “A death factory.”
“And they kept it running for eighteen months.”
“I think the surface facility was used solely to maintain the secret laboratories down here, where they experimented with the really nasty stuff. Using a cave system meant they could isolate it in a hurry if they ever had a viral outbreak.”
“Ruthless and efficient.” There was no admiration in Linc’s voice. “The Japanese could have taught the Nazis a thing or two.”
“I’m sure they did,” Juan said, still a little unsettled by what he’d just seen. “Unit 731 has its roots going back to 1931, two years before Hitler came to power. Just before war’s end, information and technology transfers went the other way. Germany supplied Imperial Japan with jet and rocket engines for suicide aircraft, as well as nuclear materials.”
Linc’s next comment died on his lips.
Deadened by distance and the surrounding rock, they couldn’t hear the explosion at the cave’s entrance. Rather, both men felt a jolt of air pressure against their bodies, like the windblast of a passing truck. The Responsivists had breached the pile of debris and were now in the tunnel system hunting them.
“They probably know the tunnels and will be coming on fast,” Cabrillo said grimly. “We have maybe a half hour to either find a way out of here or someplace we can defend with a pair of pistols and eleven rounds of ammunition.”
The next medical chamber hadn’t been stripped as much as the others. There were thin mattresses on the beds, and the cabinets were stocked with jars of chemicals. The labels were in German. Juan pointed this out to Linc, as it proved his earlier point.
Linc studied the labels, then read aloud in English: “Chlorine. Distilled alcohol. Hydrogen peroxide. Sulfur dioxide. Hydrochloric acid.”
Cabrillo had forgotten Linc spoke German. “I’ve got an idea. Find me some sodium bicarbonate.”
“I don’t think this is the time to worry about a bellyache.” Linc remarked blandly as he scanned the bottles and jars.
“High school chemistry lessons. I don’t remember too much about the safe stuff, but my teacher delighted in showing us how to make chemical weapons.”
“Lovely.”
“He was this aging hippie who thought we needed to defend ourselves when the government eventually came to seize all private property,” Juan explained. Linc threw him an odd look and passed over the appropriate glass container. “What can I say?” Cabrillo shrugged. “I grew up in California.”
Juan asked Linc to find one other jar of chemicals.
“So what do you want to do with this stuff?” Linc handed over a jar containing an amber liquid.
“Chemical warfare.”
They agreed on a spot to lay their ambush in one of the smaller medical wards. Linc bundled up some blankets and mattresses, in the shape of two men huddled under the farthest bedstead. Juan rigged a booby trap using a roll of electrical tape from Linc’s bag, the chemicals, and his canteen. In the uncertain glow of a flashlight, the mannequins were more than sufficient to lure the Responsivists. He placed Linc’s cell phone on walkie-talkie mode between the two inert figures.
Linc and Juan backed off into a room opposite and a little farther down the tunnel to wait.
If Juan had any difficulty with what they were about to do, he only had to think about the victims aboard the Golden Dawn to harden his resolve. The minutes trickled by, the luminous second hand of Cabrillo’s watch moving as if the battery was nearly spent. But he and Linc had lain in countless ambushes, and they remained perfectly still, their eyes open, although they could see nothing in the stygian tunnel. Each leaned against the stone wall with his head cocked, his ears straining to pick up the slightest sound.
After only twenty minutes, they heard them. Juan picked out two, then three distinct footfalls, as the Responsivist gunmen rushed headlong down the tunnel. There were no lights, so he reasoned they carried an infrared lamp and night visio
n goggles capable of seeing in that spectrum.
The gunmen slowed well before they came to the side cave, as if expecting an ambush. Although Juan couldn’t see the guards, he could tell by the sounds what they were doing. They had gone almost silent as they approached the entrance, advancing only when they knew they were covered by their teammates.
Metal clattered against stone, and almost immediately a voice called out.
“I see you there. Give yourselves up and you won’t be harmed.”
The sound had been one of the guards leaning his weapon against the cave entrance to steady his aim as he pointed his assault rifle at the bundles of mattresses at the far end of the chamber.
Standing behind Linc so the big man’s bulk shielded his voice, Juan triggered his cell phone and said, “Go to hell.”
With the volume of the phone left inside the medical ward set to maximum, it must have sounded like a defiant shout. Two guns opened fire at once, and, in the burst of the muzzle flashes, Juan could see all three figures. These men were no rank amateurs. Two were right outside the cave while the third held back, watching the tunnel for a flanking attack.
In such an enclosed space, the sound was an assault on all Cabrillo’s senses.
When the firing stopped, he waited to see what they would do. They had poured enough rounds into the chamber to kill a pair of men a dozen times over. The cover man snapped on a flashlight, as all three stripped off their goggles, their optics temporarily overwhelmed by the barrage. The two who had fired moved cautiously across the threshold while the third remained vigilant for a trap.
And Cabrillo didn’t let them down.
The trip wire he’d rigged was near the bedstead where he and Linc had supposedly made their last stand, and the lead guard was so intent on his victims he never saw it.
The electrical tape was tied to the bottles of chlorine and sodium bicarbonate, and when the gunman brushed against it they fell. The glass shattered in a pool of water from the canteen and one other chemical that Juan had poured on the floor.
At the sound of the bottle breaking, Juan and Linc fired. The third guard had reacted to the sound of the smashing glass, but he didn’t stand a chance. One bullet caught him under the arm and tore apart his internal organs while the second hit him squarely in the windpipe. His corpse spun to the ground, never relinquishing its grip on the flashlight or assault rifle. The beam came to rest on the cave entrance, where tendrils of a sickly greenish cloud were just beginning to emerge.
Inside the chamber, the chemical reaction had produced a small lake of hydrochloric and hypochlorous acids. In the seconds it took for the two men to realize something was wrong, their throats and lungs were burning. The fumes attacked the delicate tissues lining their airways, making even the shallowest breath a torture beyond pain.
Forced to cough from the irritant, they drew more of the toxin into their bodies, so that by the time they staggered out of the room they had gone into convulsions. They hacked blood mixed with sputum from deep inside their lungs.
The exposure had been brief, but without immediate medical attention the two gunmen were living corpses, and their deaths would be slow and agonizing. One of them must have realized it, and before Cabrillo could stop him he had pulled the pin on a hand grenade.
There was a split second to make a decision, but with the roof already so unstable there was only one thing to do. Cabrillo grabbed at Linc’s arm and took off running, not wasting a moment even to turn on his flashlight. He ran with his fingers brushing the tunnel wall. He could feel Linc’s towering presence behind him. They had both been counting the seconds and, at the same moment, threw themselves flat just as the grenade exploded.
Shrapnel peppered the tunnel all around them, and the overpressure wave hit in a wall of light and sound that felt like a sledgehammer blow. They scrambled to their feet as a new sound grew, seeming to fill the tunnel. The roar became deafening, as slabs of rock dislodged by the blast crashed to the tunnel floor in a cascading avalanche that threatened to engulf them. Dust and bits of rock fell on their heads and shoulders as more of the ceiling gave way. Juan flicked on the flashlight just as a chunk of stone the size of a truck engine slammed into the ground in front of him. He leapt over it like a hurdler and kept running. Overhead, cracks appeared in the roof, jagged lines that branched and forked like black lightning, while behind them the din of collapsing rock rose to a crescendo.
And then it began to subside. The roar petered out until only a few stones plinked and clattered. Juan finally slowed, his chest sucking in draughts of dust-laden air. He aimed the light toward the tunnel behind them. It was choked floor to ceiling with rubble.
“You okay?” he gasped.
Linc touched the back of his leg where a shard of stone had hit him. There was no blood when he looked at his fingers.
“Yeah. You?”
“I’ll be better when we get out of all this dust. Come on.”
“Look on the bright side,” Linc said as they started walking again. “We don’t have to worry about them coming up behind us anymore.”
“I always had you pegged for a Pollyanna.”
They spent another two hours exploring the underground facility. They found bunks for one hundred and eighty prisoners, rooms that had once been laboratories, and a piece of equipment Linc recognized as an atmospheric chamber.
“Probably to test the effects of explosive decompression,” he’d remarked.
At last, they came to the end of the long tunnel. It didn’t peter out or pinch off. Rather, a section of the roof had collapsed, and both men recognized that it had been blasted free. Juan inhaled next to the mound of rubble, noting that a faint trace of explosive lingered.
“This was brought down recently.”
“When the Responsivists pulled out?”
Juan nodded, not giving in to his disappointment just yet. He scrambled up the sloping pile of loose rocks, his feet dislodging debris as he neared the top. He pressed himself flat, and ran the light along the seam where the shattered stone met the ceiling. He called down for Linc to join him.
“There was nothing in this catacomb that the Responsivists would care that we see. It’s all just old junk left by the Japanese Army.”
“So whatever they’re hiding is beyond this.”
“Stands to reason,” Juan said. “And since they risked coming down here after us, I bet that our exit is on the other side, too.”
“So what are we waiting for?”
With the water used up to improvise the gas attack, an hour of backbreaking work left Juan’s tongue a sticky swollen mass, as if some scaly reptile had curled up and gone to sleep in his mouth. His fingers were raw and bleeding from shifting the jagged stones, and his muscles ached from the cramped position. At his side, Linc worked with the efficiency of an indefatigable machine. It looked as if nothing fazed him, but Juan knew even Lincoln’s vast reserves of strength weren’t inexhaustible.
Bit by bit, they burrowed their way into the rubble, moving carefully, testing the ceiling to ensure their actions didn’t bring down more of the shattered stone. They changed positions every thirty minutes. First Juan attacked the debris and passed stones back to Linc’s waiting hands, and then Linc would take point, loosening boulders and handing them back to the Chairman. Because Linc was so broad in the shoulders and chest, the passageway had to be expanded to almost twice Juan’s size.
Juan was back at the rock face and reached for a handhold on a particularly large stone, but, no matter how he tried, he couldn’t loosen it from the rest. It seemed to have been locked into place. He shifted some smaller, fist-sized stones, hoping to get leverage, and pulled with everything he had. The rock didn’t so much as wiggle.
Above the lump of stone, the ceiling was rife with cracks and fissures, as unstable as the area the Responsivists brought down with their grenade. Miners called such a ceiling a bunch of hanging grapes, and Juan knew that a chunk could dislodge without warning. He’d never felt the chil
ling effects of claustrophobia before, but he could feel the icy fingers of panic trying to worm their way into his mind.
“What’s the problem?” Linc panted behind him.
Juan had to work his tongue around his mouth to loosen his jaw enough to speak. “There’s a stone here I can’t move.”
“Let me at it.”
They laboriously swapped places, with Linc moving feet first into the tight space. He braced his boots against the rock and his back against Cabrillo’s outstretched legs and brought his strength to bear. In the gym, he was able to leg-press a thousand pounds. The boulder weighed half that, but it was wedged tightly, and Linc was in the beginning stages of dehydration. Cabrillo could feel the intense strain in every fiber and tendon of Linc’s body as he pushed. Linc let out a growl, and the rock slid up and out of its socket of loose stones and packed dirt like a rotten tooth.
“Now, that’s what I’m talking about,” he whooped.
“Nicely done, big man.”
Linc was able to wriggle forward, and as Juan followed him he realized he was gaining headroom. They had crossed the highest point of the debris pile and were making their way down the back side. Soon, he and Linc could crawl over the remaining stones on their hands and knees and then they could stand upright, so they walked down the last of the rubble and onto the cave floor. When Juan pointed the light back at the pile, the gap near the top seemed impossibly small.
He and Linc rested for a few minutes, with the flashlight off to conserve its batteries.
“Smell that?” Juan asked.
“If you’re talking about a mug of ice-cold beer, you and I are having the same hallucination.”
“No. I smell seawater.” Juan got to his feet and turned on the light again.
They proceeded down the tunnel for another hundred yards, until it opened into a natural sea cave. The grotto was at least fifty feet high and four times as broad. The Japanese had constructed a concrete pier on one side of the subterranean lagoon. There was a set of narrow-gauge iron train tracks embedded in the cement for a mobile crane that had once been on the dock for unloading supplies.