That afternoon, Lobo had knocked on her door and asked whether she would come with him after dark. "It is time you saw the rest," he had said, and Carol, who had no other plans, had agreed. Now he was waiting for her at the foot of the stairs, his long coat already on. "Put on your shoes," he said. "The real ones, this time."
He took her down through the dark streets she'd stumbled through once before, and this time she wasn't following him in secret. She walked beside him. They went left, then right, then left again, downhill toward the river and the old church, until they came to the low blue door.
This time Lobo didn't knock. The door opened before his hand reached it, as if someone inside had been watching the street, which, Carol understood now, someone always was.
Inside, warm yellow light filled the room, and it smelled of old paper, just like the front hall of the guesthouse. Carol felt her shoulders relax. Bookshelves ran from the floor to the ceiling. A long wooden table filled the middle of the room, and three people sat around it. They looked up at her without surprise.
One of them was a woman with ink-stained hands. Carol would learn that she repaired old books for a living, and she handled each page as gently as a nurse handles a patient. Beside her sat a white-haired man with his reading glasses on top of his head, who had been a professor once. A young man with a camera bag at his feet nodded at Carol as if he'd been waiting a long time for her to arrive. Last of all, there was an empty chair, which Lobo didn't take. He stood behind it with his hand on its back.
"This was her chair," he said. "We have not moved it."
Carol understood then whose chair it was, and she didn't sit in it either. The dots were beginning to connect.
Carol finally sat, in the chair beside the professor's, and the woman with the ink-stained hands set a small cup of tea in front of her. The group called itself the Blue Door Society. The professor spoke, in slow and patient English, stopping sometimes to find a word, because the room held several languages and English was the one they shared with their guest. He wanted her to see the bigger picture.
"For thirty years," he said, "we did a quiet thing, behind the scenes. Your aunt, she found the papers. From sellers. From old basements. From families who did not know what they were keeping in a box under the bed. Papers that someone, long ago, wanted gone. Some of them tell a mother where her son was taken. Some of them prove who owned a house before it was stolen. Most of the people in this room are still waiting for an answer." He spread his hands over the table. "Lobo spent forty years as a clerk in the national archives, so he knew which people could be trusted with a paper, and how to deliver it so that it ended up in safe hands, recorded and protected, and could not disappear a second time. The rest of us, we did the small parts. Repair. Records. Photographs, so that even if a paper was lost, the truth in it was not."
The young photographer slid a print across the table to Carol. It was the photograph of her mother, the young woman laughing on the porch. "Your aunt kept this one in a box in her office, and she showed it to Lobo many times over the years," the young man said simply. "She missed her family very much. I made this copy for him last winter, because the old one was fading. When you walked up the street with your suitcase, he knew you in one minute. You look very like your mother."
Carol's throat tightened. She made herself stay with the thread. "And the last papers. The dangerous ones. Where are they?"
"In the walls of Casa da Lottie," the professor said. "Behind the plaster, in the old part of the kitchen. The walls of that house are very thick, and nobody searches a wall. When the most dangerous papers came to her faster than Lobo could carry them away, your aunt hid them there herself, a few at a time, and plastered over them. She was going to finish the work this year. That is why she sent the guests away in the spring. The house needs to be quiet now. She meant: quiet enough to open the walls." He looked down at his hands. "Then she went to the hospital, and she did not come back, and the work stopped where she left it."
Carol asked the question she'd carried in since the bird page. "Who's the buyer?"
The book restorer reached into a folder and slid one sheet across the table. On it was a single family name, written plainly.
Cardoso.
"His grandfather," the professor said quietly, "is in those papers. In the bad years, he took houses and land from families, and he helped to make people disappear. Real things, with names and dates. If the papers reach the archive, they cannot be taken back. The families who lost someone will finally learn what happened, and the families who lost their homes can ask for them back, with proof. The Cardoso fortune is built on those homes." He shrugged, a tired motion. "The grandson has a great deal of money. He would rather spend it than lose it. He paid your lawyer very well."
"Costa." Carol said the name flat. "His name is in my aunt's notebook, next to Cardoso. Years ago."
"Yes." The professor met her eyes. "Costa's family and the Cardoso family go back a long way. He is not a stranger they hired last month. He is one of them, in the ways that matter. Your aunt knew this, and she wrote it down so that someone would find it after she was gone."
Carol turned to Lobo, who had stood silent behind the empty chair the whole time. "How long have you known about the offer?"
"Since May," he said. "When it came in."
"And my aunt? When did she find out that someone wanted the house?"
A long quiet followed, and Lobo's hand tightened on the back of the chair that had been hers.
"She found out in March, when a stranger came asking questions about the house, two months before the offer," he said. "She wrote to me. She said, I'm almost out of time, and the wall is still full." He looked at the empty chair, and not at Carol. "She was right. She did not have enough time. None of us ever think we are as close to the end as we are."
Carol thought about the money then, because she couldn't help it. She'd worked two jobs for years, and she'd never once had enough saved to feel safe. With the offer, she could stop working weekends at the diner, help her daughters with their rent, and finally stop checking her bank account before she bought groceries. It was the biggest chance she'd ever been given to make her life easier, and she was worried about walking away from it.
The papers were still in the wall. The deadline was the next morning. She was the missing piece her aunt had been waiting for, and she hadn't even known it. Carol, who'd come to Lisbon to sign one page and fly home rich, understood that she wasn't going to sign anything yet. First, she needed to get the papers out of the wall.