Black Cross. Greg Iles
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Churchill looked at the one-armed SOE chief, willing him to his feet. “Brigadier?”
Duff Smith, a seasoned veteran of the Cameron Highlanders regiment, stood with quiet confidence. “Thirty days ago,” he said with a vestigial Highland lilt, “we learned that our worst suspicions about the German chemical effort were accurate. Not only have they been pursuing weapons research at breakneck speed since before the war, but they’ve also been producing new gases and stockpiling them all over the country.”
“Just a minute,” Eisenhower broke in. “We’ve been doing the same thing, haven’t we?”
“Yes and no, General. Our programs didn’t really get cracking until we realized how much Germany had accomplished between the wars. And, quite frankly, we’ve never managed to catch up.”
“Are we talking about nerve agents?” asked the American major of intelligence, speaking for the first time. “We’ve known about Tabun for some time.”
“Something of quite another magnitude,” Smith said a bit testily. “The clearest indication of danger is that the Nazis have resumed testing these gases on human victims, mostly at SS-run concentration camps in Germany and Poland. These experiments have resulted in death for the exposed inmates in one hundred percent of the cases. We believe the Germans are setting up to deploy nerve gas against our invasion troops.”
Eisenhower cut his eyes at Commander Butcher.
“Did you say a hundred percent fatalities?” asked the army major. “Due strictly to the gas?”
“One hundred percent,” Smith confirmed. “Thirty days ago, the Polish Resistance managed to smuggle a sample of Sarin out of a camp in northern Germany. Two days later we delivered that sample to one of Lindemann’s chemical weapons specialists at Oxford.”
This time it was Eisenhower who interrupted. “I thought the British chemical warfare complex was at Porton Down, on Salisbury Plain.”
“In the main,” Smith responded, “that is correct. But we also have scientists working independently in other locations. Helps to keep everyone honest.”
Churchill broke in. “I think Professor Lindemann is better equipped to fill us in on the technical details. Prof?”
The famous British scientist had been fussing with a battered pipe which stubbornly refused to light. He made one last attempt and was surprised by success. He puffed seriously for a few moments, then looked at the Americans and began to speak.
“Yes … well. In the Great War, you’ll remember, chemi-cal agents were classified by the Germans under the ‘cross’ system. That is, each gas cylinder or artillery shell was painted with a cross of a particular color, depending on what type of gas it contained. There were four colors. Green denoted the suffocating gases, mainly chlorine and phosgene. White for irritants, or tear gases. Yellow Cross indicated the blister gases, primarily mustard. Blue was for the gases that blocked molecular respiration—cyanide, arsine, carbon monoxide.”
General Eisenhower lit a second cigarette off his first and inhaled with great concentration.
“Eleven months ago,” Lindemann continued, “just after the German surrender at Stalingrad, we learned of the existence of Tabun. Tabun was interesting because it worked in an entirely different way than any previous gas, by crippling the central nervous system. Yet because it was not significantly more lethal than phosgene, we didn’t overreact. But we did realize that our own chemical weapons weren’t much further along than in 1918, and we moved to correct the imbalance. Sarin—while it shares some characteristics of Tabun—is a completely different animal.”
“I’m a little fuzzy on my chemistry,” Eisenhower said with disarming frankness. “What makes Sarin so different?”
Lindemann knitted his eyebrows. “Unlike most poison gases, General, Sarin is absolutely lethal. In 1939, the deadliest battlefield gas in the world was phosgene.” He paused to give his next statement the necessary emphasis. “Sarin is thirty times as deadly as phosgene. In sufficient concentration it can kill within seconds, and it need not even enter the lungs. It can pass directly through human skin.”
“Jesus Christ.” Eisenhower had blanched. “How does this stuff work?”
Lindemann considered the American commander for some moments. “General, every function of the human body, both conscious and unconscious, is controlled by the brain. Much as a general controls his troops. The brain passes its orders down to the organs and the limbs by means of nerve branches. The nerves are the couriers of the brain, you might say. When the brain sends a message down a nerve, a compound called acetylcholine is produced. Now, at this point, the nerve has temporarily lost its conductivity. The courier, having delivered his message, can no longer run. The nerve can only be restored to its conductive state by an enzyme called cholinesterase. Without this enzyme, the nerves of the body are nothing but dead tissue. The couriers die where they lie.”
“And this gas,” said Eisenhower, “Sarin. It destroys this enzyme, this …?”
“Cholinesterase,” supplied the major of intelligence.
“Precisely,” said Lindemann.
Eisenhower pursed his lips. “Exactly how much of this stuff would it take to kill a soldier?”
Lindemann answered with his pipe clenched between his teeth. “One thousandth of a raindrop. A droplet so small most of us couldn’t see it with the naked eye.”
Churchill noted the stricken look on Eisenhower’s face. The meeting was going just as he’d planned.
“Our people at Porton have been working round the clock to copy Sarin,” Lindemann went on, “but I’m afraid they haven’t had much luck. It’s devilish difficult to reproduce.”
“I’m afraid the Germans are having all the luck just now,” Churchill said dryly. “And there’s worse to come. Prof?”
“Yes. General, Brigadier Smith brings word of a still deadlier gas than Sarin. It is called Soman. We don’t have a sample, but I’ve seen a detailed report. Remember your lethality ratios. Phosgene was the deadliest gas in 1939. Sarin is thirty times as deadly as phosgene. And according to the reports, Soman is to Sarin as Sarin is to phosgene. Worse, it’s persistent.”
“Persistent?” Eisenhower echoed.
The American major chose this moment to reassert himself. “General, persistence was one of the primary gauges of gas effectiveness during World War One. How long the gas stayed at ground level after it was released.”
Lindemann nodded. “We have reports that Soman can remain stable for many hours, even days, clinging to whatever it comes into contact with. A soldier exposed even several hours after a battle would still likely die. And it would be a horrible death, General, I can assure you.”
“Do we have any idea how much of this stuff the Germans have stockpiled?”
Brigadier Smith cleared his throat. “General, our best estimate is upwards of five thousand tons, ready for use.”
The intelligence major was stunned enough to preempt his general. “Did you say tons?”
Churchill nodded crisply. “Conventional cylinders, aircraft bombs, artillery shells, the lot.”
Eisenhower held out his right hand to Churchill. “Let me see that damned thing.”
Churchill tossed the sealed vial toward the sofa. Commander Butcher and Brendan Bracken jumped, but Eisenhower caught the vial and held it up to a lamp. “I can’t see anything,” he said. “Just some condensation at the bottom.”
“That’s because it’s invisible,” Churchill said. “Prof?”
“Eh?” Lindemann was fussing with his pipe again.
“The delivery system. Aerosols vecteurs?”
“Right.