Once in the control center, I took off my mask and immediately began to cough and sneeze uncontrollably, tears streaming down my cheeks. Even in the few minutes we had been gone, the air in the control room had deteriorated to a frightening extent.
Swanson said, “Thank you, Doctor. What’s it like in there?”
“Quite bad. Not intolerable, but not nice. Ten minutes is long enough for your fire fighters at one time.”
“Fire fighters I have plenty of. Ten minutes it shall be.”
A couple of burly enlisted men carried Ringman through to the sick bay. Rawlings had been ordered for’ard for rest and recuperation in the comparatively fresh air of the mess room, but he elected to stop off at the sick bay with me. He’d glanced at my bandaged left hand and said, “Three hands are better than one, even though two of them do happen to belong to Rawlings.”
Benson was restless and occasionally murmuring but still below the level of consciousness. Captain Folsom was asleep, deeply so, which I found surprising until Rawlings told me that there were no alarm boxes in the sick bay and that the door was completely sound-proofed.
We laid Ringman down on the examination table, and Rawlings slit his trouser leg with a pair of heavy surgical scissors. It wasn’t as bad as I had feared it would be: a clean fracture of the tibia, not compound. With Rawlings doing most of the work, we soon had his leg fixed up. I didn’t try to put his leg in traction; when Jolly, with his two good hands, had completely recovered, he’d be able to make a better job of it than I could.
We’d just finished when a telephone rang. Rawlings lifted it quickly before Folsom could hear it, spoke briefly, and hung up.
“Control room,” he said. I knew from the wooden expression on his face that whatever news he had for me, it wasn’t good. “It was for you. Bolton, the sick man in the nucleonics lab, the one you brought back from Zebra yesterday afternoon. He’s gone. About two minutes ago.” He shook his head despairingly. “My God, another death.”
“No,” I said. “Another murder.”
11
The _Dolphin_ was an ice-cold tomb. At half-past six that morning, four and a half hours after the outbreak of the fire, there was still only one dead man inside the ship–Bolton. But as I looked with bloodshot and inflamed eyes at the men sitting or lying about the control room–no one was standing any more–I knew that within an hour, two at the most, Bolton would be having company. By ten o’clock at the latest, under those conditions, the _Dolphin_ would be no more than a steel coffin with no life left inside her.
As a ship the _Dolphin_ was already dead. All the sounds we associated with the living vessel, the murmurous pulsation of great engines, the high-pitched whine of generators, the deep hum of the air-conditioning unit, the unmistakable transmission from the sonar, the clickety-clack from the radio room, the soft hiss of air, the brassy jingle from the juke box, the whirring of fans, the rattle of pots from the galley, the movement of men, the talking of men–all those were gone. All those vital sounds, the heartbeats of a living vessel, were gone; but in their place was not silence but something worse than silence, something that bespoke not living but dying, the frighteningly rapid, hoarse, gasping breathing of lung-tortured men fighting for air and for life.
Fighting for air. That was the irony of it. Fighting for air while there were still many days’ supply of oxygen in the giant tanks. There were some breathing sets aboard, similar to the British Built-in Breathing System, which takes a direct oxynitrogen mixture from tanks, but only a few, and all members of the crew had had a chance at those, but only for two minutes at a time. For the rest, for the more than ninety per cent without those systems, there was only the panting, straining agony that leads eventually to death. Some portable closed-circuit sets were still left, but those were reserved exclusively for the fire fighters.
Oxygen was occasionally bled from the tanks directly into the living spaces, and it just didn’t do any good at all; the only effect it seemed to have was to make breathing even more cruelly difficult by heightening the atmospheric pressure. All the oxygen in the world was going to be of little avail as long as the level of carbon dioxide given off by our anguished breathing mounted steadily with the passing of each minute. Normally, the air in the Dolphin was cleaned and circulated throughout the ship every two minutes, but the giant 200-ton air conditioner responsible for this was a glutton for the electric power that drove it; and the electricians’ estimate was that the reserve of power in the standby battery, which alone could reactivate the nuclear power plant, was already dangerously low. So the concentration of carbon dioxide increased steadily toward lethal levels, and there was nothing we could do about it.
Increasing, too, in what passed now for air, were the Freon fumes from the refrigerating machinery and the hydrogen fumes from the batteries. Worse still, the smoke was now so thick that visibility, even in the for’ard parts of the ship, was down to a few feet, but that smoke had to remain also; there was no power to operate the electrostatic precipitators, and even when those had been briefly tried, they had proved totally inadequate to cope with the concentration of billions of carbon particles held in suspension in the air. Each time the door to the engine room was opened–and that was progressively oftener as the strength of the fire fighters ebbed– fresh clouds of that evil acrid smoke rolled through the submarine. The fire in the engine room had stopped burning over two hours previously; but now what remained of the redly smoldering insulation around the starboard high-pressure turbine gave off far more smoke and fumes than flames ever could have.
But the greatest enemy of all lay in the mounting count of carbon monoxide, that deadly, insidious, colorless, tasteless, odorless gas with its murderous affinity for the red blood cells–500 times that of oxygen. On board the Dolphin the normal permissible tolerance of carbon monoxide in the air was thirty parts in a million. Now the reading was somewhere between 400 and 500 parts in a million. When it reached a thousand parts, none of us would have more than minutes to live.
And then there was the cold. As Commander Swanson had grimly prophesied, the _Dolphin_, with the steam pipes cooled down and all heaters switched off, had chilled down to the sub-freezing temperature of the sea outside, and was ice cold. In terms of absolute cold, it was nothing–a mere two degrees below zero on the centigrade scale. But in terms of cold as it reacted on the human body, it was very cold indeed. Most of the crew were without warm clothing of any kind. In normal operating conditions the temperature inside the _Dolphin_ was maintained at a steady 22°C. regardless of the temperature outside. The men were forbidden to move around, but even if they were allowed to, they now lacked the energy to counteract the effects of the cold, and what little energy was left in their rapidly weakening bodies was so wholly occupied in forcing their laboring chest muscles to gulp in more and ever more of that foul and steadily worsening air that they had none at all left to generate sufficient animal heat to ward off that dank and bitter cold. You could actually hear men shivering, could listen to their violently shaking limbs knocking and rat-tat-tatting helplessly against bulkheads and deck, could hear the chattering of their teeth, the sound of some of them, far gone in weakness, whimpering softly with the cold: but always the dominant sound was that harsh, strangled moaning, a rasping and frightening sound, as men sought to suck air down into starving lungs.
With the exception of Hansen and myself–both of whom were virtually one-handed–and the sick patients, every man in the _Dolphin_ had taken his turn that night in descending into the machinery space and fighting that red demon that threatened to slay us all. The number in each fire-fighting group had been increased from four to eight and the time spent down there shortened to three or four minutes, so that efforts could be concentrated and more energy expended in a given length of time, but because of the increasingly Stygian darkness in the machinery space, the ever-thickening coils of oily black smoke, and the wickedly cramped and confined space in which the men had to work, progress had been frustratingly, maddeningly slow: and entered into it now, of course, was the factor of that dreadful weakness that now assailed us all, so that men with the strength only of little children were tugging and tearing at the ‘smoldering insulation in desperate near-futility and seemingly making no progress at all.