He made breakfast.

Not tea, though there was also tea: actual breakfast, eggs and something she did not recognize that turned out to be a grain she had never encountered prepared in a way that made it taste like the best part of toast, and bread from the bakery two streets over, and a small dish of something that might have been jam if jam were made by someone who understood that the goal of jam was intensity rather than sweetness.

She came downstairs to find it on the table, and Cassian standing at the worktable with his back to her, examining something, and she sat down at the table and looked at the food for a moment before she ate any of it.

"You cooked," she said.

"I can cook," he said, not turning around. "I find it useful."

"I find it useful too," she said. "I meant that you did it this morning specifically."

A pause. "I owed you an explanation," he said. "About last night."

"You owe me an explanation about a number of things," she said.

"Yes," he said. "I am aware."

He turned around and brought his own plate to the table and sat across from her, which was the third or fourth time he had sat at the table with her rather than remaining at the worktable, and she was tracking the progression of it, the way he was choosing proximity over distance in increments small enough that she suspected he was not entirely aware he was doing it.

She ate the grain dish. It was very good. She told him so, and he nodded once in acknowledgment, which was more than she had come to expect.

"Tell me about Afterglow," she said, when they had both eaten for a while. "Not the fragments specific to your case. The rules. All of them. I want to understand the system."

He looked at his plate and then at her, and she saw him make the decision she had been waiting for him to make since the first morning: to stop managing what he told her and tell her more of it.

"Afterglow shows possibilities," he said. "Not certainties. The most important thing about it, the thing that most people understand incorrectly, is that it is not prophecy. It is a map of potential futures based on who you are at a given moment. As you change, as your choices accumulate, the Afterglow changes." He paused. "Think of it as a compass rather than a destination."

"And the more strongly a future is set, the clearer it appears."

"Yes. Some futures are very clear, which makes them feel like certainties. They are not." He picked up his cup. "The second rule is that changing the future has a cost. The cost is proportional to the size of the change: a small alteration costs a small memory, something easily forgotten, the name of someone peripheral. A large alteration costs something significant."

"I know," she said. "I experienced this."

He looked at her. "The bakery," he said.

"The bakery," she said. "I lost the name of someone I knew in university. A friend." She had tested this again last night in bed: the shape of the friendship was still there, the emotional texture of it, what it had felt like to be known by this person. But the person was a gap in the record. "It came back slightly. Not fully."

He was quiet for a moment. "It sometimes does," he said. "The memory system is not perfect. What is lost is not always entirely unrecoverable. But you cannot count on recovery."

She nodded. "Third rule?"

"A person can only erase their own Afterglow. Not another person's." He held his cup in the particular way. "Fourth: Afterglow can be shared between people with a strong emotional bond. The sharing is not a transfer, it is more like a resonance. Two people who are very deeply connected begin to carry fragments of each other's possible futures." He paused. "This is rare."

"Fifth?"

"A future that is erased does not disappear entirely. It leaves traces, as I told you. Fragments in objects, in places, in the memories of people who saw it." He was looking at the table. "The magical record is not a filing system that can be perfectly cleared. It is more like a palimpsest, which is to say that what is written over can still be felt through the layers if you know how to feel it."

She thought about this.

"That is why my ability works on your ring," she said. "It is one of the traces."

"Yes."

"And why I could feel something when I touched you, not just emptiness. Because the erasure did not erase you, it only erased the record of your future. The connection between you and the record still exists, just severed rather than absent."

He looked up at her.

"Yes," he said. "That is a more precise formulation than the one I had been using."

"I process things by finding the right language for them," she said. "It helps."

"I have noticed," he said, and the way he said it was not critical, was something closer to interested.

"The sixth rule?" she said.

He was quiet for a moment. This was a different kind of quiet from the others: not the withholding quiet, not the reviewing quiet, but the quiet of someone who was choosing to say something they had not planned to say.

"There is a sixth rule," he said. "That I have found in the older literature, that is not widely known or widely taught. When two people share a very particular kind of Afterglow bond, a connection that runs deep enough to affect both their futures simultaneously, erasing one Afterglow does not simply remove that one record. It affects both." He paused. "The bond between them is embedded in the root of the magical system. Cutting one severs both."

She set down her fork.

"You did not know this when you erased yours," she said.

It was not a question. She could see on his face that it was not a question that required asking, but she was asking it anyway because it needed to be said aloud.

"No," he said. "I did not know it."

"And whose was affected alongside yours?"

He looked at her.

In the morning light of the shop, with the sounds of the street beginning to warm outside, with the plates between them and the cups of tea, with the particular quality of a conversation that had traveled a long way to get to this moment, he looked at her.

"I will tell you," he said, "when I have understood more completely what it means." He paused. "I am not telling you this to protect you. I am telling you this because I need to be certain of the facts before I give them to you. I do not want to give you an incomplete version of something this significant."

She looked at him for a long time.

"That is the most honest thing you have said to me," she said.

"Yes," he said. "I know."

She picked up her fork and ate the rest of the grain dish, which was still warm, and across the table he drank his tea and looked at something in the middle distance that was not the table and not the shop, and she let him look, because some things required looking at.

After a while she said: "I found something in my coat pocket this morning."

He turned back to her.

She took out the letter and unfolded it on the table between them. It was in Agnes's handwriting, unmistakably, in ink that was faded but not old enough to account for the years between Agnes's death and this morning. A letter that had been written not recently, but kept, sealed, and placed at exactly the right moment.

The address on the front was in a city she did not recognize. The return address in the upper corner was Agnes's shop.

She had not opened it yet. She had carried it downstairs specifically to open it in front of him.

She opened it now.

The letter was short. Agnes's handwriting, Agnes's voice, that particular combination of directness and warmth that had made everything she said feel both inevitable and kind:

I should have told you about the other world. I kept thinking there would be time. There was not, and I am sorry. The book will explain more than I could have in words, and I suspect you have already begun to understand. The only thing I want you to know from me is this: you were not sent there accidentally. You were invited. The distinction matters.

Come home when you are ready. Both homes will be there.

She refolded the letter.

Cassian was very still across the table.

"She wrote it to me," Mina said. "She knew I would find it."

"Yes," he said.

She looked at him. "Did you know she had written it?"

"I knew she intended to," he said. "I did not know what it said."

She folded the letter into her coat pocket again and picked up her cup.

"You are going to tell me," she said, "everything you know about Agnes and Avelune. Today."

"Yes," he said. And she believed him, because she had begun to learn the quality of his yeses: the ones that were deflection, the ones that were confirmation, the ones that were something more, a kind of willingness that went beyond the word.

This was the third kind.

"After breakfast," she said.

"After breakfast," he agreed.

They ate in a silence that was not uncomfortable, that had the specific texture of two people who were about to say important things and were taking a moment to be in the time before it, because the time before important things had its own particular quality, and both of them, in their different ways, knew how to sit inside it.

Outside, Bellgrave went about its morning. Inside, the lamp on the worktable was still on from the night before, its warm circle overlapping the morning light from the windows, and the shop was full of books that waited and potential that was patient, and Mina held a letter from a grandmother who had known more than she had ever said, and Cassian held a cup of tea and did not look afraid, which she was beginning to understand was not the same as not being afraid.

She would tell him this, eventually. Not today. Today was for other things.

Today was for the beginning of the truth.

The afternoon was the archive.

He had not been lying when he said he knew the unofficial routes: he knew exactly which door on the eastern face of the building had a lock that the grounds staff had not updated since before he was born, and he had a key for it on a ring in his coat pocket, and he used it without ceremony, and she followed him into the part of the building that was not the public reading room.

The archive proper was cold, which was intentional. Cold preserved. She had worked in a university archive once, briefly, as an undergraduate, and she recognized the specific quality of the cold, the deliberate absence of warmth, the way the air was managed to protect rather than comfort. The shelves here were metal rather than wood, and the books on them were in cases rather than exposed, and the labels were not the expressive ones from Cassian's shop but the institutional kind, reference numbers and dates, efficient and impersonal.

He moved through the stacks with the ease of someone who had been here many times in ways he was not supposed to be.

"The section I need is in the back," he said. "This way."

She followed.

She was careful not to touch anything here, not because he had told her not to but because she could feel the density of Afterglow radiating from the shelves even without contact, the accumulated resonance of a building full of records of people's possible futures, and she was not ready to open herself to all of it at once.

At the back of the archive was a smaller room, and in the smaller room was a locked cabinet, and he had a key for this too.

Inside the cabinet were three items: a small book, plain, undecorated, with a red ribbon marking a page in the middle; a folded document; and a piece of smooth grey stone approximately the size of her palm, carved with the same symbol she had seen on the lintel of the antique shop.

"These were connected to my Afterglow," he said. "Before I erased it. The archivist who maintained my family's records flagged them, after the erasure. They are the three pieces in the official archive that still carry a residual connection."

She looked at them without touching.

"May I?" she said.

"Yes," he said.

She started with the stone, because it felt oldest. The resonance from it was deep and layered in the way the oldest objects were, many impressions compressed over long time, and she had to wait for the layers to settle before she could find the one she was looking for. And then it was there: a thread of something that was Cassian, specifically, recognizably, even if she could not have explained how she recognized it, and down the thread: the same fragment she had seen in the ring, the same young man in the archive, the same figure at the edge of an image. Still not clear enough. Still partially obscured.

She set the stone down.

"The fragment is the same as in the ring," she said. "I cannot see the second figure clearly enough."

He nodded. He had known this, she thought, but he had needed her to confirm it.

She picked up the folded document.

This one was different: the resonance was recent, much more recent than the stone, and it had a specific quality she had not encountered before, something that felt like an intention, like someone had put the document here deliberately to leave a trace. Like a message.

She opened the document.

It was a page of archive catalog notation in the formal system, but at the bottom, in handwriting that was not the catalog hand, was a note: The connection persists. It will find its way back. Patience is not passivity.

She read it twice.

She showed it to Cassian.

He looked at it for a long time.

"Your grandmother's handwriting," he said. It was not a question.

"Yes," she said.

She folded the document and set it back in the cabinet and picked up the small book with the red ribbon.

The book held more than the others: it was saturated, dense with Afterglow of a particular kind, the kind that had been deposited deliberately and recently, within the last year, and the image that came to her from it was the clearest she had received from any of the fragments: Cassian, older than the archive version, in a place she did not recognize, and this time the figure beside him was visible. Not fully: she could see auburn hair, a coat, a hand reaching toward him or away from him, the direction ambiguous. The composite feeling was the same as before, but stronger now: recognition, terror, gratitude, and underneath all of them, something that was not a named emotion but was the feeling of a story arriving at the moment it had been building toward.

She set the book down.

She breathed.

"Well," she said.

Cassian was watching her with the attentive look, the one that was not analytical, the one she had more names for now than she had at the beginning of the week.

"The figure in the image," she said, carefully. "The second figure. I can see more of them this time."

"Yes," he said. Very quiet.

"I am not going to describe what I saw," she said. "Not today."

He looked at her.

"Not because I am withholding," she said. "Because I need to understand what I saw before I say it. The way you told me you tell things in the order that allows them to be trusted: I am applying the same principle."

He was quiet for a moment. Then: "That is fair," he said.

She put the book back in the cabinet. He locked it. They left the archive through the unofficial door and stood on the street in the afternoon light, and she thought about what she had seen and he thought, she was fairly certain, about the same thing.

"Tomorrow," she said, "I want to try the ring again. With what I know now, I may be able to read the fragment more clearly."

"Yes," he said.

They walked back through the streets she was learning, and she thought about Agnes's note: The connection persists. It will find its way back.

She thought: you were talking about more than the Afterglow.

She thought: you knew what you were sending me into.

She thought: I am not angry about it.

She was not. She was, if anything, grateful, in the way you were grateful for being sent toward something you needed even when you did not know you needed it, which was the most uncomfortable kind of gratitude because it required trusting someone else's judgment about your life.

She was, she thought, beginning to be capable of that.

This surprised her.

She walked beside Cassian through the evening streets of Bellgrave and she thought: I am a person who is becoming capable of trust.

It felt, from the inside, like a kind of ending. Or the beginning of one.

She was not afraid of it.

She was cautious.

That was different. She was going to keep telling herself that until she believed it, which might be soon.