Chapter 1

Elara's fingers tightened around the edge of the wooden counter, her nails pressing into the grain. The merchant—a man named Henn with a face like dried leather—had already turned his back, dismissing her as if she had asked for something obscene instead of a common plant. She had seen the roots drying in his stall, tied in neat bundles, dangling from a hook near his scales. They were right there. But he refused to understand why she needed them.

"You sell them to the healer twice a market-day," she said, her voice steady despite the heat rising in her chest. "Why not to me?"

Henn grunted without turning around, stacking jars of dried thyme. "Because the healer knows what she's doing. You, girl, just want to make trouble. I hear you been askin' about belladonna, hemlock, monkshood. A body starts wonderin' what kind of remedy you're mixin'."

"I need to identify the source of the—" She stopped herself. The word 'poison' would only make him more suspicious. She had tried that argument with the village elder three mornings ago, and he had laughed her out of his cottage. "I'm researching for my own knowledge. The roots are for a poultice."

"Poultice for what?"

Elara opened her mouth, then closed it. She had no answer that would satisfy. How could she tell him that she had seen the water in the village well turning black under a full moon? That the image had come to her in a flash so vivid she had smelled the rot and tasted metal on her tongue? They called those visions dreams or lies. They called her a liar, a troublemaker, a girl with too much imagination and not enough sense.

"I'll pay double the asking," she said instead.

Henn finally turned. He crossed thick arms over his chest and studied her with the same wary look he gave stray dogs. "No sale. And if I hear you've been stealin' from my stall, I'll have you before the elder again. Now go on."

Elara's jaw tightened. She could feel the eyes of other stall-goers drifting toward her—Old Marta pretending to examine a sack of flour, two farmwives whispering behind their hands. She was a spectacle, a cautionary tale for girls who asked too many questions. Straightening her shoulders, she turned and walked away from the counter, her worn boots scuffing the hard-packed earth of the market square.

But she didn't leave the square. She found a spot near the tanner's awning, where the shadows pooled thick beneath stretched hides, and she watched Henn's stall from a distance. The nightshade roots still hung there. She needed at least one. Not for a poultice—she had never made a poultice in her life—but to prove a point. If she could brew the exact mixture that had made three people sick last month, she could show the elder that the well was tainted. She could force them to listen.

The problem was that no one in Thornhaven believed a seventeen-year-old girl could have knowledge worth heeding. Especially not a girl who had been orphaned in the plague, raised by an aunt who kept to herself, and who had started asking questions about the herbalist's craft two years ago after a stranger passed through town and gave her a book. That book now lay hidden beneath a loose floorboard in her room. Its pages were filled with sketches of plants she had never seen growing in the valley, and notes in a hand she could not quite trust.

Someone bumped her elbow. She flinched, spinning around.

A man stood there, tall and broad-shouldered, with dark hair tied at the nape of his neck and a scar that crossed from his brow to his cheekbone. He wore a traveler's cloak patched at the shoulders, and at his hip hung a sword she recognized as expensive—the hilt wrapped in leather and wire, the guard etched with symbols that caught the afternoon light. He was looking down at her with open curiosity.

"You want those roots badly," he said. His voice was low, roughened by travel, but not unfriendly.

Elara stepped back, her hand instinctively going to the small knife she kept tucked in her belt. "I don't know you."

"No. I'm Kael. I arrived in town this morning." He nodded toward the inn visible beyond the square. "Heard you haggling with that merchant. Sounded like a losing fight."

"It's none of your concern."

"Probably not." He shrugged, but he didn't leave. Instead, he leaned against the tanner's post, crossing his arms in a mirror of Henn's earlier stance. "But I'm curious. Why does a girl in a small town want to buy nightshade roots? The healer here—I met her at the gate—she said she has plenty already. So you don't need them for medicine."

Elara's pulse quickened. She had not told anyone her true reason, not even her aunt. But this stranger had a way of looking at her that made her feel seen, not judged. It unsettled her. "What does a swordsman care about roots?"

"I care about things that don't add up." He tilted his head, studying her face. "You're not the first person I've met who asks questions that make people uncomfortable. Usually, they have a good reason."

"And what reason would that be?"

He smiled, a small crooked thing that barely touched his eyes. "Maybe they're trying to stop something before it happens."

Elara's breath caught. For a moment, she considered walking away, leaving him to his speculation. But the memory of the black water in her vision pressed against her chest, and she knew she had no time for caution. The next full moon was three days away. She had seen the water turn on the night of the harvest moon. If she waited, people would get sicker. Maybe die.

"If I tell you," she said slowly, "you'll think I'm mad."

"I've been called mad a few times myself. It's not as bad as they say."

Despite herself, she almost laughed. Then she sobered. "I need to prove that the well is poisoned. I've seen it in—" She stopped, searching for a word that wouldn't invite mockery. "I've deduced it. From the pattern of the sicknesses last month. Three people, all on the same night, all with the same symptoms. The healer said it was a bad batch of berries, but I know she was wrong. The symptoms match nightshade poisoning, but not from ingestion. From contact. Someone is putting it in the water."

Kael's expression didn't change, but his eyes sharpened. "And the roots?"

"I need to brew a test batch, compare it to the residue I scraped from the well's rim. If they match, I can prove it."

"You have residue from the well?"

She nodded, touching a pouch at her belt. "I took it two days ago. But without a sample of the source, I can't prove which plant it came from. The healer won't share her stores. She thinks I'm a nuisance."

"So you need to steal one."

"I need to acquire one."

Kael laughed, a short bark of sound. "I like your phrasing. All right, Elara—yes, I heard your name from the merchant before you argued with him. I'll help you get a root. But I want something in return."

She stiffened. "I have no coin."

"I don't want coin. I want information." He pushed off from the post, closing the space between them. She had to tilt her head back to meet his eyes. "I'm looking for someone. An oracle. They say one passed through this valley a few years ago, gave a girl a book of plants. Does that mean anything to you?"

The blood drained from Elara's face. The book beneath her floorboard. The stranger who had pressed it into her hands, a woman with silver hair and eyes that seemed to see through stone. She had never told anyone about that meeting. Not her aunt, not even her closest friend, who had moved away two summers past.

"I don't know what you're talking about," she said.

The lie tasted bitter on her tongue.

Kael studied her for a long moment. Then he nodded, as if she had confirmed something. "Fine. Keep your secrets for now. I'll still help you. But when this is over, we'll talk about the oracle." He turned toward Henn's stall. "Wait here. I'll create a distraction. Be ready to move."

Before she could protest, he was walking across the square with an easy confidence that parted the crowd. She watched him approach Henn, say something that made the merchant laugh, and then ask a question that sent Henn pointing toward a stack of barrels. As Henn turned his back, Kael glanced over his shoulder at Elara and gave a tiny jerk of his chin.

She moved before she could think better of it.

Sliding through the gaps between stalls, she reached the counter in moments. Her fingers found the bundle of nightshade roots, and she slipped one free, tucking it into her sleeve. The movement was practiced, quiet—she had learned to be invisible in this town, to avoid attention. She was back in the safety of the tanner's shadow before Henn had finished explaining the barrel arrangement to Kael.

Kael ambled back a few minutes later, a plug of dried apple in his hand that he had apparently bought. He held it out to her. "Peace offering," he said. "For a new ally."

She took it, though she did not eat it. Her mind was racing. She had a root. She had a partner she did not trust. And she had a secret she had just failed to protect.

"The well," she said, finding her voice. "I need to check it at dusk. That's when the poisons settle near the surface. I can collect a fresh sample and compare it to my notes."

"All right. I'll come with you." He fell into step beside her as she left the square. "Dusk is in two hours. In the meantime, you can tell me why you really need to prove this. The vision, was it?"

She stumbled, catching herself on a fence post. "How did you—"

"You said 'seen,' earlier. Then corrected to 'deduced.' You're a bad liar, Elara." He said it without malice. "It's all right. I've met an oracle before. They don't tell fortunes; they see what is, or what will be, but they can't always explain how. Maybe that's what I need from the one I'm looking for."

"I'm not an oracle," she said, but the words felt hollow. The woman who gave her the book had said something similar: 'You will see things, child. The seeing is not the gift. It's the knowing what to do with it that matters.'

They walked to the edge of town, where the path curved toward the forest and the well stood at the crossroads. It was an old well, stone-lined, with a wooden cover that had warped from years of rain. No one else was around at this hour; the farmers were still in their fields, the women in their kitchens.

Elara knelt by the well, pressing her cheek to the cool stone. The residue she had collected earlier was a faint gray smear on the rim. She pulled out a clean cloth and wiped a fresh sample, careful not to disturb the water below.

"You really think someone is poisoning it?" Kael asked, crouching beside her.

"I know it." She held up the cloth. "Smell this."

He leaned in, inhaled, and then recoiled. "Bitter. Almost metallic."

"It's nightshade alkaloids. Someone is dropping roots or leaves into the well, probably at night, so the water takes on the poison by morning. The three people who got sick all drew water at first light. The next victims will be the children who fetch water for their mothers."

Kael was quiet for a moment. Then he said, "You're right to be afraid. This is not the work of a prankster. This is deliberate."

"I know." She stood, brushing dirt from her knees. "But proving it is only half the battle. The elder won't believe me unless I catch the person in the act. He said my accusations were 'groundless fears' from a girl who reads too many books."

"Then we'll catch them." Kael stood as well, his hand resting on his sword. "Two hours until dusk. We'll watch from the treeline. If anyone approaches the well tonight, we'll have our answer."

Elara looked at him, this stranger who had appeared from nowhere and offered to help for a price she could not yet name. She should have been wary. She was wary. But there was also something in his steady gaze that made her feel less alone than she had in months.

"Why are you really doing this?" she asked. "You don't know me. You don't owe me anything."

"Maybe I'm just a man who likes a mystery," he said. "Or maybe I think that someone brave enough to ask dangerous questions deserves a chance to be heard."

She had no answer for that. Instead, she led him to the treeline, where they settled into the shadows to wait.

Dusk crept over Thornhaven like a slow tide. The sky turned amber, then violet, then a deep bruised blue. Lanterns flickered to life in cottage windows. The square emptied, and the sounds of the town faded to the murmur of families settling in.

Elara's legs ached from crouching. Her hands were cold. She watched the well with an intensity that made her eyes water.

And then, just as the last light died, she saw it.

A figure moved along the path, hunched and cautious. It carried something heavy in a cloth sack. It stopped at the well, glanced around, and then lifted the wooden cover.

Elara's breath caught. She grabbed Kael's arm. "It's now," she whispered.

Kael was already moving, rising from the underbrush with a silent grace that surprised her. He drew his sword—not to strike, but to hold as a promise of authority.

"Whoever you are," he called out, his voice cutting through the twilight, "step away from the well."

The figure froze. Then it turned, and in the dying light, Elara recognized the face.

It was the healer, Marta.

The woman who had dismissed her, laughed at her questions, and refused to help her. Marta, who was supposed to be tending the sick, not making them.

"Elara?" Marta's voice cracked with surprise and fear. "What are you—who is that with you?"

"That's the man who's going to help me bring you before the elder," Elara said, stepping out of the shadows. Her heart pounded, but her voice was steady. "I know what you've been doing. I have the residue. I have the root. And now I have you."

Marta let out a sound that was half-laugh, half-sob. "You don't understand. I wasn't poisoning the well. I was making it safe. Someone else put the poison in this morning. I've been coming every night to add a neutralizer. I was trying to stop it."

Elara's certainty wavered. "That's what you say now."

"It's the truth. Check the sack. There's yarrow and angelica, not nightshade."

Kael moved forward, nudged the sack with his boot. A few leaves spilled out, pale and feathery. Yarrow, indeed.

"She could be telling the truth," he said quietly. "Or she could have a second sack hidden elsewhere."

Marta shook her head. "I've been trying to stop it for weeks. But I didn't know who was behind it. I thought if I just kept adding the neutralizer, the poison would stay weak enough to avoid a death. But I couldn't find the source."

Elara looked from the healer to the well, then to Kael. The night pressed in around them, full of questions she had not yet asked, answers she had not yet earned.

"Who started it?" she demanded.

Marta hesitated. Her eyes darted toward the village, toward the elder's cottage. "Someone who doesn't want the valley to have water. Someone who wants to drive us out."

"Who?"

Marta opened her mouth, but before she could speak, an arrow whistled through the air and thudded into the wooden well cover inches from her hand. She screamed, stumbling backward.

Kael spun, scanning the treeline. "We're not alone."

Elara's blood turned to ice. The poisoner had been watching them all along.