Lethal Exposure Page 6

  Craig gripped the decidedly unsteady scientist, and Paige helped usher Dumenco out of his office. “I’ll get you everything you need,” she said. “We’ll go through your files and find the printouts from your last test run.”

  “I’m driving you back to the hospital,” Craig said, tolerating no argument. Dumenco seemed ready to resist until Craig added, “I need you to stay alive long enough to help me solve this case.”

  On the drive from Fermilab toward the Fox River Medical Center, Craig watched Dumenco brood in the car. The dying scientist longingly stared at the lab buildings, the low ring that marked the underground particle accelerator, the small, restless herd of buffalo behind their rickety fences.

  Craig used their private time to discuss the case. The Ukrainian looked at him with watery, glassy eyes that were bleary and pinkish from thousands of tiny hemorrhages. Inside his body, the damage had already been done-cells were dying in droves, his internal organs were failing; soon his thought processes would also suffer, making him delusional or incoherent.

  The worst part was that the great scientist knew it was happening.

  “Now then, sir, let us discuss this case,” Dumenco said. He tried to smile through cracked lips. “You put me in a difficult position. I have very little time left to complete my work, or to help you solve my murder. Which do you believe is more important-progress or revenge?‘’

  “I’d call it justice, rather than revenge.”

  Dumenco was silent for a moment. “In the grand scheme I think you’ve found the difference. My life is more than just a drop in a tiny pond in a vast universe. Justice is what I really want.”

  Craig followed a cement mixer and a dump truck leaving the Main Injector construction site. “And that’s what I’m here for. Let’s solve this case quickly so you can use any remaining time on your physics.”

  “A good plan, kind sir.”

  “All right,” Craig answered. “This morning we went to the site of your accident and also viewed the crater left by the blockhouse explosion. Dr. Piter walked us through the details. My partner, Agent Goldfarb, is right now looking at one of the intact substations to see if he can pick up any clues.”

  “I know nothing of the explosion,” Dumenco said, stifling a cough. “I know only that someone intentionally caused the beam dump, and that I am paying the price for it.”

  Craig wished he had been able to take out his notepad.

  “So why would someone want to kill you?”

  “I have done many things in my career, Agent Kreident.” Dumenco’s voice was strong but carried a hint of hoarseness from phlegm building up in his throat and lungs. “I left the Ukraine during the downfall of the Soviet Union. I abandoned my career and all my research, and I came here to work as a high-energy physicist. Your American government has been very kind, but I have paid a high price.”

  Craig made a mental note. “And were you welcome here, or did some of the other physicists resent your background?‘’

  “On the contrary, I was most heartily welcomed. Fermilab is accustomed to international collaborations. After the Soviet collapse, your government was most eager for me to use my talents for your benefit, rather than some less desirable country. They allowed me to work here… without hassle, and without the usual paperwork that comes with being a foreign national. The United States values scientific talent.”

  Dumenco cleared his throat, then delicately spat into a wadded handkerchief he withdrew from his pocket. Craig could see flecks of blood in the spittle before the scientist quickly tucked the cloth away.

  “The Russians were quite… upset after I had fled. My recent work has apparently made some people very nervous. I received veiled threats, but I was promised protection by your State Department. However, it seems someone has managed to kill me anyway, here on the eve of my Nobel nomination.”

  The Ukrainian closed his reddened eyes and took a deep breath. “Did you know the Committee is not allowed to give a Nobel Prize to a dead man? I hope I don’t miss my chance.”

  Craig stopped at a traffic signal, watched the trucks and cars bustling through the center of Aurora. Tall brick buildings lined the narrow main street, coffee shops and greasy-spoon cafés at street level; several blocks away from the downtown area, old suburban houses sat on broad, grassy lots.

  “What about your graduate student, Mr. Bretti?” Craig asked, focusing on the case again. “Was he aware of these threats on your life? Did he feel himself in any danger for assisting you?”

  Dumenco gave a wan smile. “No, Bretti would never have been a target. He is a big talker, and often indignant, but the truth is he has not managed to complete his thesis during the seven years he has assisted me, and I doubt he ever will.” He snorted. “I hope he is a better fisherman than a scientist, otherwise he will have a very disappointing vacation.”

  Inside the Medical Center, Trish LeCroix met them like a mother hen, scolding Dumenco for leaving her. She helped Craig whisk him off to his hospital room. The old physicist endured her ministrations as she took his blood pressure, temperature, heart and respiratory rate, and prodded him into changing back into his hospital gown. She made a point of taking his street clothes, his keys, and his wallet, so she could put them in a hospital locker.

  Dumenco seemed penitent. “Dr. LeCroix is a bossy woman, Agent Kreident. She seemed so nice when I knew her in the Ukraine.”

  Craig smiled. “Trish doesn’t like to deal with anything unexpected.”

  She made an indignant noise. “Listen, Georg-I’m here to help you, and I’m the best radiation-exposure physician you’re going to get. If you’d like, I can just let you back into the hands of a general practitioner.”

  Dumenco actually chuckled as she herded him into the bed. He pulled the sheet up, but Trish kept his bare arm available. “You’re dehydrated. I’m hooking you up to a saline drip.” She looked at the physicist, then at Craig, placing her hands on her hips. “All right, I’ll leave you two to keep talking-but no more sightseeing!” Moving like a true professional, Trish hurried out of the room to fetch IV supplies and a bag of normal saline.

  The Ukrainian rolled closer to the tray table that separated him from Craig. Someone had set out a small plastic chess set with magnetized pieces, all the chess men lined up in perfect ranks.

  “Let’s have a game while we continue our conversation, kind sir,” Dumenco suggested. Craig noticed that the skin on his forehead was white and scaly. “Do you play?”

  Craig looked down at the pieces as his thoughts spun. The man’s dying, and he wants to play chess? “Not with any skill,” he said. “I used to goof around with my dad, but don’t expect any championship strategy.”

  Dumenco waved a swollen hand. “I just want to occupy my mind. It will take all of my concentration to keep my thoughts sharp and focused… until the very end.”

  The scientist chose white and moved first, picking up the little plastic piece and sliding it across the squares. “For a game like this it seems we should be using a fine onyx and jade set, don’t you think?” Dumenco raised his eyebrows. “After all, I must savor the niceties of life, while I can.”

  Craig moved a pawn. “I don’t suppose the hospital’s game chest has anything like that.”

  Years ago, he had played with his father, more as an excuse to spend time together than through any passion for the game. Craig had never been terribly good at small talk, and the two had needed a catalyst for conversation-especially since Robert Kreident’s life revolved around the football, baseball, and hockey teams in the Bay Area. Craig’s interests in science and technology had diverged from his father’s interest in sports, but they could chat about chess moves and occasionally other things as they played.

  Now, though, Craig focused his attention on the Ukrainian’s rambling speech, moving only defensively to counter Dumenco’s pieces.

  “What kind of strategy do you call this?” the physicist said, watching Craig move a bishop to a seemingly pointless position.
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br />   “I told you I didn’t play often,” he answered. He looked at the chess pieces, then at his notes. “Explain to me why you were running experiments on a Sunday, and after dark.”

  Dumenco glanced at the large round clock on the wall. “The hour of day makes no difference underground,” he said. “During an experimental run, the accelerator operates round the clock. Computers record the collisions, sample the daughter particles, and sort out anything worthwhile.” He shook his head. “Maybe I can reach some valuable conclusions before time grows too short… if Ms. Mitchell ever gets here with my results.”

  “But you’re dying,” Craig said bluntly; Dumenco didn’t seem to mind. “Do you want to be looking at technical readouts during your last days?”

  “I must!” He said with such vehemence that his reddened hand clenched into a fist. He winced at the pain, then lowered his voice. “My results, my theories are what I leave behind. My family is…” he paused uncomfortably, “… not with me, so my work is my legacy. I have cracked open the door to God’s mysteries, and I must make sense of my results to prop open that door, prepare it for the next person. If I die with my work unresolved, the door will slam shut again. All my thoughts-all my life-will be worthless.”

  Craig tried to be soothing. “If you’re already up for the Nobel Prize, you’ve done plenty in your life. Your work will be carried on by others.”

  “Consider it this way, sir,” Dumenco said. “If you were to leave this case, another agent could pick up the clues and perhaps solve my murder. Forgive my arrogance, but if I die now it will be many years before someone grasps this esoteric subset of particle physics to synthesize what I have done and take it to the next step.”

  He moved his rook into position and scanned the board. Craig moved another piece, and Dumenco countered rapidly. “Check,” he said simply.

  With sudden embarrassed alarm, Craig studied the board. He moved to counter the Ukrainian’s ploy.

  “Are you a scientist, Agent Kreident?” Dumenco said.

  “I have some training,” Craig said. It had been a long time since putting himself through Stanford, working for Elliot Lang’s PI agency… “I’ve got a physics undergraduate degree, and I went into patent law after law school-I thought that was where the money was, but it was boring.”

  Dumenco moved his queen, calmly said, “Checkmate,” then leaned back into his pillow as if exhausted. He closed his eyes as Craig scrutinized the little magnetic chess pieces, trying to understand what the Ukrainian had done. He could find no last-ditch way out.

  “Have you heard of the mathematician Fermat?” Dumenco asked.

  Craig frowned. “Of course.”

  The old man’s lips were swollen, and he spoke in a quiet whisper. “After his death, someone discovered a handwritten notation in one of his texts-Fermat claimed to have found an ‘elegant proof’ for one of the great mathematical mysteries. But he didn’t write down that proof, and mathematicians wracked their brains for centuries to rediscover it. Until just recently, Fermat’s Last Theorem remained unproven.” Dumenco finally opened his eyes again to look at Craig. “I don’t want to be the high-energy physics equivalent of Fermat.”

  Craig swallowed a lump in his throat.

  “Maybe this will help.” They both turned to see Paige Mitchell standing at the door to the intensive care room, a folder full of papers in her hand. But Trish LeCroix bustled up to block the way.

  “You can’t go in there.” Trish looked sourly down at the sheaf of printouts. “Dr. Dumenco needs to rest and gather his energy. If you give him those papers, he won’t sleep a minute.”

  Paige held the folder so tightly her knuckles whitened. “He was quite insistent about having them. Let me guess-you must be Trish?”

  “It’s Patrice.” The room temperature seemed to drop twenty degrees.

  Craig interrupted. “This is Paige Mitchell, from Fermilab, on Dr. Dumenco’s request. It was the only way he would agree to go back to his hospital room.” He looked intently at Trish’s sepia eyes behind her delicate eyeglasses. “Let him have the papers,” he said, lowering his voice. “Those experimental results mean more to Dumenco than anything right now. Maybe he loses a little sleep, but he’ll die a lot happier.”

  Trish’s eyes flashed, but she backed away, gesturing Paige inside.

  Dumenco sat up in his hospital bed with an expression of such extreme delight that Craig knew he had made the right decision. The scientist swept the chessboard off the small table, knocking magnetic pieces in all directions. “Bring them here-thank you, thank you. You’re very kind.”

  “It’s the least I could do,” she said. “Dr. Piter also asked me to pass along that he is at your disposal if you require anything else.”

  Dumenco rolled his eyes. “That man has been a thorn in my side for years, just because some of my work contradicts his old CERN papers. I’m glad he is at least pretending to have a change of heart.”

  As the scientist pawed through the papers, Craig knew he would have to look elsewhere for clues. Georg Dumenco was otherwise occupied.

  Maybe Goldfarb had found something.

  CHAPTER EIGHT

  Tuesday, 2:37 p.m.

  Fermilab,

  Beam-Sampling Substation

  Breathing hard, Nicholas Bretti paused to take a closer look at the man he had just shot, even as he tried to scramble out of the isolated blockhouse.

  Everything had happened so fast, so unexpectedly. He hadn’t meant to do it. But, shit-the FBI! You take one quick little step down that slippery slope, and it sucks you down to hell like grease-covered glare ice!

  The federal agent looked like a dark-suited Pillsbury doughboy on the floor. He didn’t move, didn’t appear to breathe. Dark liquid oozed from the wounds in his chest.

  Bretti looked to the heavy door, the harsh glare of sunlight outside. No one ran into the blockhouse to see what was the matter, no one raced to investigate the gunshots. Should he call for help? Get an ambulance?

  Or was there a chance he might be able to get away? Nobody knew he was here-he was supposed to be gone, days’ deep into his annual fishing trip in the wilds of West Virginia.

  Bretti slapped his hands together, stepped toward the shot FBI agent, then turned toward the door. I must look like an idiot, he thought, confused, panicked.

  Keep cool, he reminded himself. Get the apparatus. Pack it in the car, and drive to the embassy. Just like the plan. They had gotten him into this, and they could help him out. No problem, no sweat, no heartburn… no fucking way!

  Bretti had never hurt anyone before, certainly never killed anyone-hell, he’d never broken the law, never cheated on a college exam… though if he had, maybe it wouldn’t have taken him seven years as a grad student and still no hope of seeing a Ph.D. anytime soon. This should have been his ticket to a better life. Antimatter. A simple, invisible embezzlement of atomic particles, bled off from the main beam.

  No one should have noticed, except maybe that damned Dumenco. But then, nothing in Bretti’s life had ever turned out the way it should. Though it sure seemed possible when that Indian, Chandrawalia, had first approached him, showed up at his apartment. No wonder he had tracked Bretti down-the world’s oldest grad student.

  He swallowed hard, close to hyperventilating, took a half step toward the man on the floor, then ignored him entirely. No turning back now. He had to deliver the old Penning trap with whatever load it had managed to store in two days. Maybe that would be enough. It would have to be enough, since the main p-bar supply had been annihilated.

  The FBI man’s handgun burned a hole in his pocket. He wanted to get rid of it, but he couldn’t leave it there. Fingerprints, evidence… he didn’t know what sort of magic the crime lab could do these days.

  How could things go so wrong so fast? First the emergency beam dump on Sunday, which caused a power outage, blowing the hell out of his demo stash. And now some FBI suit came snooping around when he was transferring the last day’s run of p-bars.
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  Why couldn’t the bastard have waited another ten minutes? Bretti would have completed his task, and no one would have suspected. Nobody was supposed to see him at Fermilab. During his week of vacation, he should have had plenty of time to slip off to India, make his delivery, take his payment, and get back to Illinois to pretend that nothing had happened. Nobody would have noticed, or cared, except maybe Dumenco and his unexpected results.

  Well, after the curmudgeonly Ukrainian’s radiation exposure, Dumenco wouldn’t be chasing lost antiprotons for long. He certainly hadn’t spent much time being a good advisor, helping Bretti make it through the academic hoops, taking the grad student under his wing, using a bit of professional pull to get him through the hard parts.

  Crap, the old fart only cared about his own theories and the damned Nobel Prize. Now, maybe Bretti would have to accept it for his dear-departed mentor.

  Nicholas Bretti took a deep breath. The fading rush of adrenaline had left him with a case of the shakes. He had to move fast before anyone found the man he’d shot. He had to take his equipment and get out of there.

  Over at his work station, Bretti carefully disconnected the transfer mechanism from the Penning trap. Working quickly, he attached the much smaller, but much more efficient crystal-lattice trap and accelerometer to a port upstream from the main detector, where the substation tapped into the Tevatron flow. The crystal trap was the real key, a treasure chest for storing antimatter-but it needed nearly a week to collect enough p-bars to make it worthwhile.

  Similar to the hundreds of other diagnostics attached to the beam channel, his small device had never drawn attention. Many teams of technicians had their own equipment in these substations, and nobody ever messed with someone else’s diagnostics. It just wasn’t done.

  Instead of passively imaging the intense, rotating beam of p-bars, Bretti’s lattice trap would bleed off antimatter particles after they had been laser cooled and slowed by the accelerometer.