Chapter 15: Chapter 15

The chemical marker glowed like scattered stars against the dark tissue of Grandma's liver—tiny pinpricks of emerald that shouldn't exist.

"What am I looking at?" Liang Yue asked, her throat tight.

Professor Li pointed to a cluster of the green spots. "Mercury. But not ordinary mercury. This is a stabilized organic compound—bound to proteins in a way that suggests it was designed to hide from standard toxicology screens. I only found it because I tested specifically for heavy metal chelates."

"Heavy metal chelates." The words tasted like ash. "That sounds like—"

"Alchemy. Yes." He turned the page, revealing a chemical structure diagram. Complex rings of carbon and nitrogen, wrapped around a single mercury atom. "This is a Pill of Eternal Stillness. Or at least, a crude approximation of one."

Liang Yue's training kicked in, overriding the grief. She'd studied thousands of pill formulas from Grandma's journals. The Pill of Eternal Stillness was theoretical—a formula that suspended bodily functions so completely that the user appeared dead. It was supposed to be a meditation aid, a way to experience the void between lives.

"It's supposed to be a mercy pill," she said slowly. "For advanced practitioners who want to experience death without dying."

"Correct. But they weaponized it." Professor Li's jaw tightened. "They modified the formula. Instead of suspending function, it destroys the liver's ability to process toxins. The mercury builds up over months. By the time symptoms appear, it's too late."

Three months. Grandma had been sick for three months. The doctors said it was rapid-onset liver failure. She'd been in so much pain, and Liang Yue had sat by her bedside, helpless, watching her fade.

And someone had done this to her.

"Who?" The word came out razor-sharp.

"I don't have a name. But I know how they got close enough." He pulled out another photo—a security camera still from a pharmacy. A woman in a white coat, face partially obscured by a surgical mask, handing a prescription bottle to Grandma. "That was taken six months ago. At the pharmacy your grandmother used for thirty years."

Liang Yue studied the image. The woman's build was familiar. The way she held her shoulders, the slight tilt of her head. Something about the eyes visible above the mask.

"I know her." The recognition hit like ice water. "That's Dr. Chen. She works at the university health center. She gave me my vaccination shots last semester."

Professor Li's face went pale. "She gave you—"

"A tetanus booster. Three months ago." Liang Yue's hand went to her arm, the spot where the needle had gone in. "Right before Grandma got really sick."

The implications crashed through her mind like a wave. She'd been poisoned too. Maybe not with the same compound. Maybe something slower, something designed to weaken her, to make her easier to control when the time came.

"Get to the hospital," Professor Li said, already reaching for his phone. "I'll call in a favor. We need to run a full toxicology panel on you, immediately."

"No." The word surprised even her. "If I go to the hospital, they'll know we're onto them. Dr. Chen will disappear. The Zhang family will cover their tracks."

"Liang Yue, you could have mercury building up in your organs right now—"

"I'll run a test myself." She pulled out her phone, scrolling through her contacts. "I know someone in the chemistry department. Off the books. No records."

"Who?"

"Zhang Mei." She saw Professor Li's expression shift. "No relation to the Zhang family. Different surname character. She's a grad student in analytical chemistry. She owes me—I helped her brother when he had anaphylaxis last year. No EpiPen available, so I used an emergency pill."

"You gave her brother an alchemical pill?"

"I gave her brother a concentrated antihistamine that I refined using the furnace's purification function. The hospital couldn't tell the difference. Neither will the Zhang family."

Professor Li stared at her for a long moment, then let out a breath. "You're more like your grandmother than you know. She would have said the same thing—take the risk yourself before letting anyone else handle it."

"Grandma taught me that the furnace chooses its master for a reason. If I'm going to die, I'd rather die fighting than hiding."

"Fine. But I'm coming with you."

They moved through the university like shadows, avoiding the main paths, keeping to the covered walkways where the security cameras were blind spots. Professor Li knew every angle, every gap in coverage. He'd been avoiding surveillance for months.

Zhang Mei's lab was in the basement of the chemistry building, a cramped space crowded with spectrometers and fume hoods. She looked up when they entered, her eyes widening.

"Liang Yue? It's two in the morning."

"I need a favor. A big one." Liang Yue pulled up her sleeve, exposing the crook of her elbow. "I need you to draw my blood and run a full heavy metals panel. Confidential. No records."

Zhang Mei's gaze flicked to Professor Li, then back to Liang Yue. "What's going on?"

"Someone might have poisoned me. I need to know with what."

The color drained from Zhang Mei's face, but she didn't ask any more questions. She grabbed a tourniquet and a butterfly needle, her movements efficient and practiced. "Sit. Tell me if you feel dizzy."

The needle slid in. Blood flowed into the collection tube, dark and thick. Liang Yue watched it fill, thinking about all the things that could be swimming in her veins right now. Mercury. Arsenic. Something worse.

"Give me two hours," Zhang Mei said, labeling the tube. "I'll run ICP-MS. It'll catch everything down to parts per billion."

"That's fine. We'll wait."

"No, you won't." Professor Li's voice was firm. "You need to see something first. The morgue."

Liang Yue's stomach turned. "I already saw the photos—"

"The photos show the liver. They don't show what I found in her lungs." He pulled out his phone, showing her another image. "This was taken under UV light. Look at the bronchial tissue."

She forced herself to look. The lungs were a landscape of damage—scar tissue, inflammation, dark patches that shouldn't be there. But what caught her attention was the faint blue glow along the smaller airways.

"What is that?"

"Luminescent residue. It only shows up under specific wavelengths of light." He zoomed in. "Your grandmother was forced to inhale a secondary compound. My theory is that the Pill of Eternal Stillness was administered orally, but it needed an activator—something that would trigger the mercury release at a specific time."

"An activator," Liang Yue repeated, the implications dawning. "So they didn't just poison her once. They poisoned her twice."

"The first compound sat dormant in her system. The second was probably in her apartment—maybe in her humidifier, or her air purifier. Something she breathed in every night. When the two compounds met, the reaction produced the mercury chelate."

That was why Grandma had been using the humidifier so much those last months. She'd complained about dry air, about her throat hurting. Liang Yue had bought her a new one, a nice one from the pharmacy.

The same pharmacy where Dr. Chen worked.

"I bought the humidifier," Liang Yue whispered. "I picked it out. I paid for it."

"You couldn't have known—"

"I should have known!" Her voice cracked. "I'm an alchemist. I should have sensed the Qi contamination. I should have—"

"How?" Professor Li's voice was gentle but firm. "You'd been the furnace's master for less than a month at that point. Your grandmother had been hiding her condition from you for years. You couldn't have known because she didn't want you to know."

The tears came then, hot and shameful. Liang Yue wiped them away with the back of her hand, angry at herself for breaking down.

"Show me the body."

"Liang Yue—"

"I said show me the body."

The morgue was cold in a way that had nothing to do with temperature. The fluorescent lights hummed overhead, casting everything in a pale, clinical glow. Professor Li led her to a refrigerated drawer, pulled it open.

Grandma's face was peaceful. That was the worst part. She looked like she was sleeping, like she might wake up at any moment and scold Liang Yue for staying up too late.

"Can you open her mouth?" Liang Yue asked.

"I can. But why—"

"I need to see the tongue."

Professor Li hesitated, then gently pried open the jaw. Liang Yue leaned in, studying the tissue. In traditional Chinese medicine, the tongue was a map of the body's condition. And in Internal Alchemy, it was something more—a window into the Qi circulation.

There it was. A faint black line running along the right edge of the tongue, almost invisible unless you knew what to look for.

"Liver meridian," she breathed. "The poison entered through the lung meridian, but it concentrated in the liver. That's why the autopsy missed it—they were looking for cardiac causes, not hepatic ones."

"Can you trace it back? The specific formulation?"

Liang Yue closed her eyes, reaching out with her Qi sense. The furnace pulsed in her dantian, warm and responsive. She let her awareness expand, feeling the residual energy in Grandma's body.

The poison had left a signature. A pattern of Qi disruption that was as unique as a fingerprint.

"I know this formula," she said, opening her eyes. "It's based on the Nine Revolutions Pill. But they've modified it. The mercury is bound to a cinnabar derivative—that's how they stabilized it."

"Can you reverse it?"

"I can make an antidote. But I need the source—the original pill that they used as a template. If I can analyze the chemical structure, I can design a counter-agent."

"The Zhang family compound. They have a laboratory there. Off the books, no government oversight."

Liang Yue looked down at Grandma's face one last time. "Then that's where I'm going."

"That's suicide. The compound has private security. Guard dogs. Motion sensors."

"I'm not going to break in." She pulled out her phone, pulling up a news article. "The Zhang family is hosting a charity gala next week. For the Chengdu Museum of Traditional Medicine. Invitation only."

"You're not on the guest list."

"No." She smiled, thin and dangerous. "But I know someone who is. Remember how I said the Zhang family owns the police? Well, they also own the museum board. And the board chairman's son is a friend of mine from organic chemistry lab."

"Can you trust him?"

"Can I trust anyone?" She pocketed her phone. "But I can use him. He'll get me in as his plus-one. Once I'm inside, I'll find the lab."

"And if you get caught?"

The furnace pulsed, hot against her dantian. Liang Yue thought of Grandma's final whisper. *Don't let them take it. Don't let them twist the Way.*

"Then I'll make sure I'm not the only one who burns."

Professor Li stared at her for a long moment, then nodded slowly. "I'll prepare a contingency plan. Extraction routes, safe houses, documentation to get you out of the country if necessary."

"Do you really think it'll come to that?"

"I think the Zhang family has been planning this for decades. I think they killed the last Internal Alchemist to get the furnace, and now they're going to find out that the furnace chose its own successor." He