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not bright?” Oliver asked.

      “Neon, he’s not,” Decameron replied. “But he is young. He could season if he’d cut the strings. He still lives at home, so the little snot gets whatever he wants—”

      “You don’t like his kids, do you?” Oliver said.

      “I don’t like anyone, so don’t go by me.” Decameron sighed. “No, I don’t like his children. They’re all suck-ups. Except the priest. He’s independent so far as I can tell. And a good man.”

      “Who’s he?” Oliver asked.

      Heather said, “Father Bram.”

      Decameron said, “Azor was livid when Bram took his orders. First, Bram had the nerve to convert from Azor’s strict Fundamentalist Church to Catholicism without asking Daddy’s permission. And then when he became a priest … well, what can I say? The truth hurts.”

      “What truth?” Heather said.

      “Darling, what do you think?” Decameron’s eyes roved between Oliver and Marge. “Bram is clearly gay—”

      “What are you talking about?” Heather said.

      “The whole family’s in heavy denial. Because to Azor, et al., homosexuality is still an abomination before the Lord. He couldn’t deal with it—his beloved son being a faggot.”

      “Dr. Decameron, there’s no reason to use pejoratives,” Marge said.

      “Oh come, come. Surely you can tell I’m talking from personal experience. Yes, Azor can deal with gays like me on a professional level. Just like he can deal with Jews like Myron Berger. But between me and these walls, I’m sure he thought of both of us as hopeless sinners.”

      “I think you’re wrong!” Heather exclaimed. “And what does it have to do with poor Dr. Sparks being murdered?”

      “I’m just giving them background, Heather.”

      “When did he receive this call from Paul?” Oliver said.

      “About seven-thirty.”

      “Was he upset when he came back to the meeting?”

      “Well, he was upset with me. But he didn’t seem upset by the call.”

      “What’s this project you’re working on?” Oliver asked. “This Curedon?”

      “So you know about Curedon.” Decameron squinted at Heather. “We’ve been talking, haven’t we.”

      Marge said, “Dr. Decameron—”

      “All right, all right. What do you know about Curedon?”

      Oliver said, “It’s an antirejection drug, whatever that means.”

      “You know what Azor Sparks is noted for, don’t you?”

      “Heart transplants,” Marge said.

      “Yes.” Decameron looked upward. “Heart transplants. The man is … was one of the greatest surgeons ever to land on our fair planet. Even I can’t joke away his genius.” He gazed at Marge. “Because Azor was a genius in every sense of the word. Terrible. For someone to cut him down … and with his death, dies all his skill and knowledge. Too bad Azor didn’t live long enough to set up a protocol for a brain transplant.”

      Decameron cocked a hip.

      “Now that might have been interesting. His brain in my body.”

      “That would have been obscene!” Heather muttered.

      Decameron rolled his eyes. “Curedon was just one of Azor’s many contributions to medical science. One in which I was privileged enough to participate. May I sit?”

      Marge pointed to an empty upholstered chair. “Please.”

      Decameron sat. “How to explain this.” He thought. “Whenever a transplant of any kind is effected, the human body has a natural tendency to reject it.”

      Oliver said, “I’m lost.”

      “Our bodies are amazing inventions. It almost makes you believe in God.” Decameron paused. “Almost. We have a wonderful invention called the immune system. It recognizes the Huns out there, the invaders of our bodies, and wipes them out. Any foreign substance—a virus, a bacterium, a cancer cell—will eventually be discovered as an interloper and destroyed if one has a properly functioning immune system. A very good thing. Without it, we’d all take the route of AIDS patients.”

      Decameron looked at Oliver.

      “Okay, so far,” Oliver said. “Go on.”

      “Well, sometimes you can have too much of a good thing. Sometimes the immune system is overactive. For most of us, if we get an irritant up our noses or get a bee bite, we might sneeze a bit … or swell up locally. But eventually everything settles down. A few unlucky souls have immune systems that overreact—send out droves of histamines to fight off a little interference. Cellular walls break down, fluid is poured into the tissues, and the body swells up.”

      “An allergic reaction,” Marge said.

      “Exactly,” Decameron said. “The most dangerous sequela of an allergic reaction is in the lungs. The breathing apparatus can become so inflamed that often air can’t pass through.”

      “So what does this have to do with Curedon?” Marge asked. “It prevents an allergic reaction?”

      Decameron nodded. “In a sense, that’s what it does. When a heart is transplanted into a body, the body’s in-place immune system doesn’t recognize the heart as a necessary part of the body. It sees it as a foreign substance, and sends out white cells to destroy it.”

      Oliver said, “So it’s like the patient has an allergic reaction to his or her new heart.”

      “Essentially, yes,” Decameron said. “Without proper medication, the immune system would eventually eat the heart away.”

      Marge said, “I thought that transplant patients are tested to make sure there’s a fit between the new heart and the old body.”

      “Of course, we type-match, Detective. We do the best we can. But often it isn’t enough. There’s a sad shortage of hearts and lots of people with heart disease. We have to make do. That being the case, we have to work around the immune system. We have to undermine it. Hence, the class of drugs known as immunosuppressants. Cortisone for example.”

      “You give heart transplant patients cortisone?”

      “No, but surgeons give them related immunosuppressants. Like prednisone. The most commonly used drugs are Imuran and Cyclosporin-A. With severely compromised renal patients, surgeons often use the more experimental class of immunosuppressants—Orthoclone or OKT3—and the other Ks like FK506. Sorry to bore you with details, but it will help you understand the importance of Curedon.”

      The room fell quiet. Marge wrote as fast as she could.

      “Curedon has a completely different chemical structure from the other immunosuppressants. The way it binds and interacts with T-cells through the production of interleukin 2 … Curedon seems to subdue the immune system without suppressing it. What that means is, we see far less unwarranted side effects. This is very, very important. Because transplant patients are on immunosuppressants for life.”

      “Forever?” Oliver asked.

      “Ever and ever,” Decameron said. “We put them on as minimal a dose as possible. But even so, there are side effects.”

      Marge asked, “Such as?”

      Decameron ticked off his fingers. “Pulmonary edema, ulcers from mucosal sluffing, chills, nausea, fever, dyspnea.” He shook his head. “It’s a long road for these patients, and our goal, as members of the healing arts, is to make them as comfortable

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