“Clearly.” He reached over, without announcement, and tilted the brim half an inch forward.
The adjustment was small and entirely correct, and his fingers did not touch her, yet the proximity of the gesture nonetheless produced a response in the region of her sternum that she was choosing to attribute entirely to nerves about the evening ahead.
Now, they stood at the institution’s entrance, the street quiet behind them, the building warm-windowed and purposeful ahead, and she was acutely aware of every detail in the way one becomes acutely aware of things when standing where one is not supposed to be.
The Duke stepped close, his voice pitched low. “Sit with me. Do not speak unless spoken to. If at any moment you wish to leave, we shall do so.”
“I don’t wish to leave.”
“Not yet.” The ghost of that near-smile crossed his expression, then was gone just as quickly as it had appeared. “Come.”
He moved forward, and she fell into step with the studied nonchalance of a woman pretending to be a young man who has every right to be there. She kept her chin level, and the man at the door admitted them both without incident.
The amphitheater was already crowded.
The benches curved around a central demonstration table in a half-moon, tiered upward in the manner of a theatre, and on every bench sat men of varying age and profession and the particular concentrated quality of the genuinely interested. The air smelled of candle wax and fresh paper, and the faint, acrid undertone of some chemical preparation lay out on the central table in neat, gleaming rows.
The Duke guided her toward the back, to a bench slightly removed from the main press, with a clear sightline to the table below. He sat. She sat beside him. Their shoulders were only a few inches apart.
She fixed her gaze on the table below and did not look at him, but was aware of him regardless, the way one is aware of a fire in a room: not through any exertion of attention, but as a simple fact.
When the lecturer entered, the murmur in the room died without direction.
He was not an impressive man in the physical sense: middle-aged, slight, with ink-stained fingers and the distracted bearing of someone who had begun thinking about his subject two corridors back. He introduced himself in three sentences, looked at the assembled men with the brisk, unsentimental gaze of someone who assumed competence and would revise it downward only under duress, and began.
“Gentlemen.” His voice was dry and carried without effort. “You have all, at some point in your lives, watched something burn. A candle. A hearth. Perhaps a building, if you were unlucky or curious. You believed you understood what you were seeing.” He paused. “You did not.”
A murmur moved through the benches. He ignored it.
“For a century, the prevailing theory held that combustion released a substance—phlogiston, they called it—from matter into the air. A tidy explanation.” He picked up a glass vessel from the table and turned it in the lamplight. “The trouble with tidy explanations is that they have a regrettable tendency to collapse under scrutiny.”
He set the vessel down and looked out at the room with the expression of a man who had made this argument before and enjoyed it each time.
“Lavoisier did not merely disprove phlogiston. He demonstrated that combustion is not a release at all. It is a combination. Matter does not shed something when it burns. It takes something in.” He let that sit. “What it takes, and how, and whysome reactions proceed with the violence of a pistol shot, while others require coaxing. That is what we are here to discuss.”
He stepped to the central table and began to demonstrate, and the room went from attentive to arrested.
She forgot, within thirty seconds, that she was dressed as someone she was not. She forgot the argument with Lewis, yesterday afternoon’s tedium, and the hollow weight she had carried out of Grayston House tonight. She forgot everything except the table below and the extraordinary, vivid, completely absorbing fact of what was happening in front of her. The chemistry she had read in secret and in fragments over the years was alive here: visible, measurable, producing its effects in real time with the ruthlessness of truth that does not require permission.
Beside her, she was faintly aware of the Duke of Wynford going still.
He was watching her. She knew it the way one knows an irreversible thing: all at once and without gradation. She kept her eyes on the demonstration with her hands folded in her lap and felt the precise quality of his attention on her profile as a physical fact.
Below, the lecturer introduced a glass vessel and a small measure of a colorless substance that he held to the nearest lamp with the precise, unhurried confidence of a man who already knew what it would do. It flared briefly, a blue-white that had half the room drawing breath at once.
“Magnesium,” she breathed, without meaning to speak aloud.
“Mm.” The sound from beside her was barely audible, a low note of confirmation. She felt rather than heard it.
“He’s going to combust it in water next.” She kept her eyes forward, her voice barely a thread of sound beneath the lecturer’s narration. “The reaction is exothermic. Most of the room won’t anticipate that.”
A pause. “Is that so?”
It was not a question. She could hear, without looking, that the Duke’s attention had shifted from the table below entirely.
The lecturer lifted a second vessel.
The room erupted in the collective, sharp, involuntary exhalation of thirty men confronted with something that had exceeded their expectations. Several lurched back on their benches. One let out a profanity that his neighbor pretended not to hear.