to blister as the fire grew at his feet. His suit jerked spastically with his frantic attempts to stamp out the flames. Mercer had to turn the volume on his underwater phone down to its minimum setting. He couldn’t bear to listen to the agonizing screams, though he did not pull away from Scott’s suit until the last gasping cry.
Mercer’s anger built until he almost couldn’t see. Something in Scott’s suit hadn’t shorted. It had been tampered with. The saboteur had struck again and this time he had a good idea who that person was.
Later, he seethed and turned from Scott’s inert form.
His frantic efforts were fueled partly by hatred but mostly by fear. He would be a fool to think his suit hadn’t been tampered with. But he would not turn back. The bomb needed to be another three hundred feet deeper into the mountain in order to collapse the water-trapping dikes that threatened to split the island in half. Considering the yield of the nuclear device, a hundred yards didn’t seem like much, but the explosives experts had been adamant. They were trying to implode the mountain the way demolition experts took down a building. Placement of the device was everything.
The pincers could snip through pipes up to an inch in diameter. He used them to sever
He popped free and drifted to the floor. His efforts had whipped up a storm of sediment and his faceplate was fogged by his heavy breathing. Uncaring, he powered up his thrusters and advanced deeper into the volcano.
An alarm in his helmet went off. He scanned the LEDs. The water temperature had shot up to a hundred and eighty degrees.
“Jesus, not now.” He killed the shrill horn and pushed on, unwilling to admit he was beginning to feel heat seeping into the suit despite its cooling system.
He had no idea what had been done to Scott’s suit to cause the fire. It probably wasn’t on a timer or both suits would have shorted at the same time. Something else had triggered it. Mercer remembered that Scott had overheated his motors. Could that have been it? Had the strain of dragging the towline activated some device that caused the fire? He checked the status board for the six motors on his suit. All of them were green.
“No, damn it. That isn’t it,” he said aloud.
During their training session he and Scott had switched suits. The saboteur knew Mercer would be carrying the bomb, but couldn’t have known that he’d be using Scott’s suit and not the one left available by the attack on Charlie Williams. By tampering with C.W.’s ADS, the saboteur thought he would kill Mercer and prevent him from delivering the bomb. There would have been no need to damage the suit they believed Scott Glass was going to dive in.
No less pressed for time, Mercer figured he no longer had to fear immolation. He continued down the tunnel, his heart a little slower, the sweat bathing his body a little less oily.
When he was well past what he knew to be the eight-hundred-foot mark, he shut down the suit’s motors and allowed himself to settle on the bottom. The temperature outside his ADS hovered just below the two-hundred- degree mark. Inside the suit it hadn’t grown uncomfortable yet, but Mercer was well aware of the heat. He was also noticing that the plastic faceplate was losing a little of its clarity.
It was awkward to unclip the bomb from the shackles on his chest, and when they finally released the weapon dropped to the floor with a dull thunk. He flipped it onto its back. A bolt had been hastily welded to the timer’s access panel so he could open it with the unwieldy pincers. Scott was supposed to have done this.
Gently, Mercer snapped the claw around the bolt and tried to expose the timer. The panel flew open. He looked and saw that the timer was still sealed. It was the bolt that had snapped off. He muttered a curse and tried to grab the bead of weld still attached to the bomb, but the pincer couldn’t get a tight grip. He strung his next curses into a long sentence.
He had no tools.
“Think, damn it, think.”
He needed something strong and flat to wedge into the seal and pry the lid open. The folding knife he always carried in his pocket would be perfect. It had the perfect blade.
Blade, he thought. One of his suit’s propeller blades.
He reached for one of the nacelles on his shoulder and came up far short. The ADS didn’t have that degree of flexibility. There wasn’t enough time to go back and snap a blade off of Scott’s suit.
Mercer settled across the narrow shaft, braced his feet against the wall and shoved back as hard as he could. The impact rattled him in the suit and the power failed for a second as a wire jarred loose. In the momentary flash of darkness he saw a muted glow emanating from deeper inside the volcano. Molten rock was entering the vent. It couldn’t have been much or the water would have boiled away by now, but it was enough. He slammed the back of his suit into the rock again and again. His head caught a sharp edge at the back of his helmet, opening a trickling wound.
The seventh time did it. He felt one of the main motor housings pop loose from the suit. It drifted on the minute current until coming up against the bundle of wires acting as an umbilical. He reached into the nacelle’s throat and ripped the prop off its shaft.
Each of the three blades was about two inches long and made of tungsten steel. It was a miniature work of art in a way, its delicate curve designed for maximum thrust with minimum resistance. He unceremoniously jammed it against the timer panel and heaved open the thick lid.
Inside the small compartment was a single red button. Mercer pressed it, giving no consideration that he had just unleashed four and a half thousand tons of TNT. His suit’s electronic display recorded the temperature as two hundred and ten degrees. At this depth it would need to be much higher to boil the water, but it was slowly dissolving the faceplate. Already Mercer’s view had the same murky blur as trying to open his eyes in a chlorinated swimming pool.
He could also see the glow of lava even with his lights on.
Mercer closed the bomb’s lid and started back the way he’d come. Even if the lava flowed over the weapon, its casing would protect it from the thermal onslaught.
With one main thruster trailing uselessly behind him, steering the NewtSuit became a challenge, especially when he realized the other primary motor had been damaged and ran out of balance. The suit wanted to veer left, then down. He adjusted his trim so the ADS was horizontal, allowing him to use the directional nacelles to push him forward. He felt like he was barely creeping along the tunnel, and with his pincers dragging along the floor he was blinded by sediment.
Behind him magma continued to drip into the tunnel, and no matter how fast he struggled forward he couldn’t escape the envelope of scalding water. The digital thermometer read two hundred eighteen degrees. Mercer’s face mask had become a wavy prism. The cooling system was struggling to keep pace. A hot spot had developed at his elbow that blistered his skin. The inside of the suit smelled of cooked meat.
His helmet clanged against
He climbed over the ROV, snagging the detached motor in the tangle of braces. He snipped the wires and pulled himself free. More than anything he wanted to take Scott’s body back to the surface, but there was no way he could do it. Without an operator in control, the suit could easily jam in the narrow vent and trap them both.
Mercer laid a hand on the suit’s chest. “I’m sorry,” he muttered and cut the tow cable out of Scott’s grip. He took a firm hold on the cable and tapped it with his pincer.
Nothing happened. He rapped it again, harder, and suddenly he was being pulled from the tunnel. He skipped and bounced against the shaft as the topside crane operator recovered what he thought was the ROV.
It took a few minutes but he finally saw that he had outpaced the temperature spike. The thermometer was down ten degrees. And not a moment too soon. It was hard to be certain, but it looked like half the thickness of his faceplate had been dissolved.
Three minutes later the cable drew him out of the vent and into cold water. The plastic gave a sickening pop
