Jack Du Brul - Charon's landing

“What could make it start in the first place?” Henna asked. He was out of his element entirely and doing his best to keep up.

“Any number of chemical compounds could do it. The human body is very attuned to toxicity in its environment. Also, when a body is frozen, this kind of damage will occur.”

“Jesus,” Mercer exploded. “Freezing. Why the hell didn’t I think of that before?”

“What’s the big deal?” Henna shook his head. “The body was recovered from Alaska in unseasonably cold weather. It’s no surprise that the body was freezing.”

Mercer turned to him as a thin tendril of the mystery began to unravel. “Dick, pay attention to the tenses. She didn’t say when a body freezes; she said when a body is frozen.” He glanced to Lynn Goetchell and was rewarded with a slight nod. “What are we talking about — temperatures below two hundred degrees Fahrenheit?”

“The destruction to the cells is complete, and since the reaction wasn’t timed, there’s no way to calculate.”

“It doesn’t matter,” Mercer replied. He tore a piece of paper from the legal pad at Henna’s elbow and pulled a pen from the inside of his jacket. Henna and Goetchell watched silently as Mercer wrote out the name whose meaning had eluded them all: roger.

“Now, that piece of steel was ripped just at the end of the last letter r , right?” He didn’t wait for a response. “But what if it wasn’t an r at all.” He continued the upper arm of the letter, curling it down to spell out rogen .

He looked up quickly. Lynn Goetchell instantly understood where he was leading, but Henna was still baffled, the corners of his mouth hanging down in concentration. Mercer finished the remainder of the word with a flourish, filling in the letters that had been torn away by the explosion aboard the Jenny IV : nitrogen. And then he added the word he knew preceded it on the twelve-inch-diameter cylinder that rested within the doomed ship’s hold: liquid nitrogen. He went so far as to add the triangled circle that denotes biohazard.

“I’m willing to bet that there was a hell of a lot more than one tank of liquid nitrogen on the Jenny IV ,” Mercer said triumphantly. “I remember that her stern-mounted crane and all of her radio antennas had snapped off. Now it makes sense. The fire must have boiled the liquid nitrogen in the holds. Since I found one body still in his bunk, the fire must have consumed the ship quickly. The other crewman was on the deck when the heat of the flames caused the tanks to explode. The ship would have been engulfed in a fog of supercooled gas that snuffed the flames. That’s why he was so badly burned in some areas and unaffected in others. The fire was put out before it could finish roasting him.” Mercer paused, imagining the agony of such a death. He shivered off the gruesome image. “The intense temperature change would have weakened the cranes and antennas. They snapped under their own weight.”

Henna looked at Goetchell for confirmation.

“It makes sense given the preliminary findings of the autopsy. Nitrogen liquefies at three hundred thirty-eight degrees below zero, about seventy-seven degrees above absolute zero on the Kelvin scale, more than cold enough to do this type of cellular damage. And it doesn’t require expensive refrigeration equipment like liquefied hydrogen or helium. A fire near the cylinders could conceivably cause them to boil and rupture, spilling their contents in an evaporative cloud. And that kind of cold will weaken metal, plastic, and wood to the point where they can collapse under even minor strain. There isn’t a physics student in the country who hasn’t seen a nail dipped in liquid nitrogen shatter when hit by a hammer.”

“Why?” Henna directed his question at Mercer like a pistol shot.

“Hey, give me a moment. Ten seconds ago we didn’t even know what she was carrying.”

In the ensuing silence, the large white-faced clock on the wall clicked through five minutes, its thin red second hand ratcheting off the time mechanically, uncaringly. Mercer stretched out, his eyes staring into a middle distance that only he saw.

“Where did they get it?” Mercer asked softly. “It doesn’t make sense that they got the nitrogen from the mainland and brought it out to sea with them. More than likely, they were conveying it to port when the fire occurred. Where the hell did they get tanks of liquid nitrogen in the middle of the Gulf of Alaska?”

“One more on the list of mysteries,” Henna said pessimistically.

“Not so fast.” Mercer turned to Lynn Goetchell. “Can you give me the date and time of death?”

“The body was discovered on the seventeenth and the Medical Examiner put the time of death at early afternoon the day before. I can’t prove it, but I’ll bet that he wasn’t off by more than a few hours.”

“Afternoon of October sixteenth.” Mercer turned to Henna. “I need a phone and a couple of hours and I’ll tell you where they got those cylinders. Hopefully, I’ll be able to give you a why after that.”

“Forget it. You’ve done your part.”

“What are you talking about?” Mercer was shocked that his friend was taking him out of the loop.

“If it hasn’t slipped your mind, there have been two attempts on your life in the past couple of days. You’re out of it as of right now.”

“Dick, don’t turn bureaucrat on me now. You still have no idea what’s happening, which means the attempts on my life aren’t going to stop. If I’m at risk, then I want a say in the investigation.”

“Forget it, Mercer,” Dick Henna repeated sternly. “I’ve got nearly two hundred agents working in and around Alaska right now, looking for anything that may threaten the opening of the Arctic Refuge and the building of the second Trans-Alaska Pipeline, and so far they’ve turned up nothing. Christ, two gas stations in Anchorage were firebombed last night no more than five blocks from our field headquarters. Now that we’ve gotten a lead, my personnel are the ones who are going to track it down. Not you.”

“Come on, none of those guys have my scientific background. If the FBI had had agents who knew that ammonium nitrate fertilizer and fuel oil combine to make an explosive, the Oklahoma City bombing might never have occurred. I was playing with Amfo when I was a kid.”

“Dr. Goetchell, would you please excuse us.” Henna’s tone was tight. She got up quickly, shaking Mercer’s hand and nodding to her superior before leaving the conference room.

Henna continued. “Number one, don’t think our friendship means you can talk to me like that in front of my people. It undermines my authority and makes you look like a jerk. Number two, I appreciate what you’ve done here, but that doesn’t mean I’m going to give you free rein to continue. This is an FBI investigation, not a personal crusade. I like you enough not to want to see you killed. Kerikov never got close to you last time, but now he’s in the country, and if you go sniffing around, you’ll end up in the same condition as your three friends. If you think I’m being a hard-ass, you’re right. The country is a powder keg, Alaska is its fuse, and any moment someone’s going to light it. I have enough to worry about without you making this personal.”

Mercer knew that Henna was speaking from the heart. Henna was being forced against a wall by the administration, pouring a ton of man-hours into the Alaska crisis with absolutely no results. Mercer had just provided a major clue, but there was just no way Henna could let him get involved. Mercer understood this, respected Henna for it, but had no intention of backing down.

Rather than continue his entreaty, he changed tack. “What about those guys who attacked me last night? Have you found anything?”