Read Chapter 3: The Hidden Formula

The attic stairs groaned beneath Camille’s weight, each step releasing a puff of dust that hung in the late afternoon light like spun gold. She had not been up here since she was twelve, when Odette had caught her rummaging through old gowns and had gently steered her back down to the kitchen for madeleines.

The atelier below—her grandmother’s private workspace—had been immaculate, preserved like a shrine. But this attic was the true archive: a jumble of hat boxes, rusted perfume stills, and leather-bound ledgers stacked in leaning towers along the walls. Camille ran her fingers over the spines, reading the faded labels. *1948—Rose de Mai Harvest.* *1953—Labdanum Procurement.* Her grandmother had kept everything.

She was looking for something specific. The note from the sealed vial had been cryptic—a promise, a riddle, a name that began with A. But Odette Roussel had never done anything without layers. If there was a secret ingredient, there would be a record. And if there was a record, it would be here.

Camille pulled a dusty tarpaulin off a low table and found a row of cardboard boxes, each marked with a year in Odette’s precise cursive. She knelt, her knees complaining against the rough floorboards. The box marked *1967* was thick with age, its corners soft as velvet.

Inside: a stack of letters tied with twine, a dried sprig of lavender that crumbled at her touch, and at the bottom, beneath a layer of tissue paper, a small metal box of the kind that once held chocolates. It was locked, but the catch was old and the metal corroded. Camille pried it open with the edge of her grandmother’s letter opener, which she had found on the table beside her.

The lid sprang back with a whisper of protest.

Inside lay a single sheet of paper, yellowed and brittle, folded into quarters. Camille unfolded it carefully, her breath shallow.

The handwriting was Odette’s—unmistakable, even in its younger form. Looping, confident, a little impatient.

*July 1967*

*Mon cher Marcel,*

*I have done as you asked. The formula is complete, but I must be honest with you: I cannot sell it. Not to you, not to anyone. You understand why.*

*The heart of it is not rose, not jasmine, not anything that can be bottled and bought. It is a memory. A promise. If I sell it, I betray what we found together. And if I betray that, then the scent is nothing but oil and alcohol.*

*I have hidden the key where only you would think to look. But you must not come for it. Not yet. When the house is ready to tell the truth, the flower will bloom again.*

*Find me when the roses are in bloom. I will be in the field at dawn. You always knew how to find me.*

*Forever yours,* *O.*

Camille read the letter twice, then a third time. Her hands were trembling, and she could not say why. *Marcel.* A name she had never heard in all her years in this house. Her grandmother had been married to Henri Roussel for fifty years, had worn black for two years after his death, and had spoken of him with a devotion that bordered on reverence.

But this letter… this letter was different. It was intimate in a way Camille had never associated with her grandmother. And it referenced a formula. A hidden key. A flower that would bloom again.

She turned the paper over. On the back, in paler ink, almost invisible, was a list of notes in Odette’s hand:

*Base: musk, ambrette seed* *Middle: iris, orris root, violet leaf absolute* *Top: bergamot, but bitter—not sweet* *The heart: ?*

The question mark was underscored three times.

Camille’s pulse quickened. The formula was incomplete—deliberately so. The heart note was missing, and she knew, with a certainty that lodged itself in her chest like a splinter, that the missing note was the same secret Odette had mentioned in her final note. The sealed vial. The unfinished scent. The mystery of “A.”

She folded the letter and slipped it into the inner pocket of her jacket. The metal box she closed, then placed back in the cardboard container, arranging the tissue paper exactly as she had found it. She had learned long ago that Odette noticed everything—even from beyond the grave, it seemed, if the woman had arranged her secrets this carefully. Camille would not be careless.

She had to find Marcel. But that was a task for later. For now, she needed to understand what the formula was worth, and why her grandmother had hidden it from the house.

A floorboard creaked behind her.

Camille froze. She did not turn immediately. She forced her breathing to stay even, her hands to remain still, as if she had been caught with a hand in the biscuit tin rather than a sixty-year-old love letter.

“I thought I heard someone up here.”

Alexandre’s voice was low, unhurried—the voice of a man who was not surprised to find her in a place she had no business being.

Camille rose, brushing dust from her knees, and turned. He stood at the top of the attic stairs, one hand resting on the frame, his silhouette framed by the warm light from the atelier below. He was in shirtsleeves, his tie loosened, and he looked—if she were being honest—less like a corporate intruder and more like a man who belonged in old houses with creaking floors.

“I didn’t realize you had access to this part of the house,” she said.

“I have access to the whole house.” He stepped forward, his polished shoes finding the weak floorboards with surprising ease. “The will gave me oversight of all Maison Roussel properties and archives.”

“Oversight, not ownership.”

“I’m aware of the distinction.” He stopped a few feet from her, close enough that she caught the clean scent of him—soap, paper, something faintly woody. He glanced at the boxes around her, then back at her face. “Found something interesting?”

“Just old letters.” She kept her voice neutral. “My grandmother kept everything. It’s a family trait.”

“Is it? I hadn’t noticed.” His gaze drifted to the cardboard box at her feet, and Camille felt a spike of alarm. Was the lid shut? Yes. Had she dusted it? She wasn’t sure. But the metal box was hidden beneath the tissue paper, and the letter was in her pocket, and there was no way he could know what she had found.

And yet.

Alexandre was not a man who asked questions he did not already know the answers to. He had known about the shoebox of jasmine in Odette’s cellar. He had known about the sealed vial, the note, the unfinished scent. He was watching her the way a chess player watches a board, patient and calculating.

“Ms. Roussel,” he said, and the formality of it made her bristle, “I’m not your enemy. I know that’s hard to believe, given our first meeting. But I was hired by your grandmother, not against her.”

Camille blinked. “Odette hired you?”

“She did.” He said it simply, without defense or elaboration. “She wanted someone who understood the business side of the house. Someone who could protect it from the vultures circling after her death. She picked me.”

“And the six-month challenge?”

“That was her design too. She wanted to make sure the person who took over Maison Roussel actually wanted it—not just the title, but the work.” He met her eyes. “She wanted to see if you would fight for it.”

The words landed like stones in still water. Camille wanted to dismiss them, to chalk them up to strategy, to manipulation. But something in his expression, in the way he held himself, made her hesitate.

“If she wanted me to have it,” Camille said slowly, “why didn’t she just leave it to me?”

“Because she knew you would run.” Alexandre’s voice was quiet now, almost gentle. “You ran before, Camille. When your mother died, you ran from this house, from your grandmother, from everything. She knew that if she handed you the house, you would spend the rest of your life wondering if you had earned it or been given it. She wanted you to choose it.” He paused. “I think she wanted you to stay.”

For a long moment, Camille said nothing. The dust motes swirled between them. Somewhere below, a door closed, and the house settled into its familiar creaks and sighs.

“You know about the note,” she said. It was not a question.

“I know Odette left you something. I don’t know what it says or what it means.” He tilted his head. “But I know you found it. And I know you lied to me just now about what you were doing up here.”

Camille’s jaw tightened. “That’s not what I—“

“I told you I’m not your enemy. I meant it.” He took a step closer. “But if you’re going to decode what your grandmother left behind, you’re going to need help. And if you’re going to beat Mathieu, you’re going to need a partner who understands what you’re risking.”

“Partners share information.”

“Partners earn trust.” He held her gaze. “You’re not ready to trust me. I understand that. But when you are, I’ll be here.”

He turned and descended the stairs, his footsteps receding into the quiet of the atelier below.

Camille stood alone in the dust and the late light, the letter warm against her heart. She pulled it out and read the final line again.

*I will be in the field at dawn. You always knew how to find me.*

The roses were in bloom. Tomorrow, at dawn, she would go to the field.

And she would find out who Marcel was.