“And my father?”

“He had come to repair a door backstage. He heard the children scream and ran in. He lifted Benji out of the way.”

“Who was operating the walls?”

June glanced at Walter. “My brother, Arthur, on the first winch. Walter on the second. I called the cues.”

Walter put down his sandwich. “The red lever was connected to the third wall. I checked it before the show.”

“But it failed,” Lily said.

“Yes.”

“So why would somebody remove a stop?”

June stirred her soup without drinking it. “That’s what we have been asking the wrong way.”

After lunch June took Lily to the loading dock. An industrial skip stood outside, already filled with painted wood and bent metal. A contractor was carrying another panel toward it. June called out, and he stopped.

“That piece belongs to the blue room,” she said.

“Everything belongs to the skip, ma’am.”

“Not until five.”

The contractor lowered the panel with exaggerated patience. Lily noticed a painted yellow star on its edge. She asked if she could inspect it. The man shrugged and returned to his work.

On the back were two sets of holes: one clean and regular, the other crooked, as if a bracket had been moved after installation. Lily ran her fingers along the wood.

“Was this part supposed to be replaced?” she asked.

June stared at the holes. “Not that I know of.”

Walter leaned closer. “That’s a guide panel. It never moved.”

“Then why does it have fresh mounting holes?”

Nobody answered. A forklift beeped behind them, and the contractor shouted that the loading dock had to be cleared.

June looked toward the open stage door. “Someone has been inside the room. Recently.”

7. A SECOND REHEARSAL

They returned to the workshop and found a young woman photographing the remaining props. She introduced herself as Nessa Ward, an architectural salvage coordinator hired to catalog reusable pieces before demolition. Her phone was full of images of old light fixtures, carved moldings, and theater seats.

“Did you move any panels?” June asked.

“Not the blue room. My crew isn’t allowed in there.”

“Who is?”

“The demolition supervisor, the building owner, and the people doing the hazardous-material survey.”

Lily showed her the crooked holes. Nessa studied them, then searched through her photographs.

“That looks like the panel I saw Tuesday,” she said. “There was a man measuring it. He said he was checking whether it could be used in the new display.”

“What display?” June asked.

Nessa looked uncomfortable. “The developer is making a heritage corner in the parking structure. A little installation with pieces from the theater. It’s supposed to open next month.”

June’s cane struck the floor. “They are using my work as decoration while they tear down the room that explains it?”

“I don’t make those decisions,” Nessa said.

“Who does?”

“Mr. Calder, the development manager.”

Lily asked for a photograph of the man measuring the panel. Nessa had one taken from the balcony. The figure wore a gray jacket and held a clipboard. His face was partly obscured, but Walter recognized the posture.

“Arthur,” he said.

June turned so sharply her cane slipped. “My brother hasn’t set foot in this building since the accident.”

“He’s here now,” Walter said.

Arthur Vale had moved to Indiana after the theater closed. He and June spoke on holidays, if at all. Lily had assumed the family quarrel was part of the old accident, but June explained that Arthur had become a contractor and later worked as a consultant for redevelopment projects.

“He knows the building,” June said. “He knows the moving room better than anyone. Why would they bring him back without telling me?”

Daniel called the number on Nessa’s contract. A receptionist confirmed that Arthur Vale was advising on the heritage installation. He was scheduled to return that afternoon.

June insisted they wait. Lily, however, walked back into the workshop and examined the model. She pressed the little stop again, then moved each wall in sequence. One panel advanced. Another retreated. The mechanism was simple enough for a child to understand.

She thought of her father, a practical man who never trusted a machine that needed luck to behave. He had written on the ticket that she liked the stars. He had also written, in the margin of a family photograph at home, that a good repair should be obvious to the next person who opened the machine.

The small model had been repaired once. Its stop was a newer piece of wood. The real panel had been drilled twice. Lily began to suspect that the missing stop was not the only thing that had changed.

8. ARTHUR’S VERSION

Arthur Vale arrived at three, carrying a leather satchel and wearing polished boots unsuited to a demolition site. He was a narrow man in his seventies, with June’s high cheekbones and none of her warmth. When he saw the group waiting, his expression hardened.

“June,” he said. “I thought you were finished making trouble here.”

“You thought wrong.”

Arthur recognized Walter, then Daniel. He did not recognize Lily until June introduced her as the daughter of the man who had saved Benji.

“Hart,” Arthur repeated. “That’s unfortunate.”

“Why?” Lily asked.

“Because this family has suffered enough from that afternoon.”

June held out Nessa’s photograph. “Why are you measuring the blue-room panels?”

“For the display.”

“Without telling me?”

“You don’t own the panels.”

“I designed them.”

“And the theater paid for them.”

Walter interrupted. “Did you change the guide brackets?”

Arthur’s eyes flickered toward the panel leaning against the wall. “Those brackets have been replaced half a dozen times.”

“Not after the room was locked,” June said.

“Then someone replaced them before.”

Lily watched Arthur’s hands. He held the satchel against his leg with his left hand, but his right thumb kept rubbing a pale patch on his ring finger.

“What is the heritage display supposed to do?” she asked.

“Show people what the theater used to be.”

“Will the walls move?”

Arthur looked at her. “A little. A demonstration. No children inside.”

“Using the original mechanism?”

“A modern drive system.”

“Then why are you moving old brackets?”

Arthur’s patience snapped. “Because the original pieces have to fit. And because this project is already behind schedule.”

June stepped between them. “If you’re taking pieces from the room, I want to see exactly what you’ve done.”

“You have no authority over the installation.”

“Then show me as a courtesy.”

“No.”

The refusal changed the room. Walter looked at his former colleague with something like recognition, as if a long-standing suspicion had finally found a shape.

Arthur turned to leave. Lily spoke before he reached the door.

“My father wrote that the walls listened. What did he mean?”

Arthur stopped.

“It was a children’s joke,” he said.

“He hated that joke.”

“Then your father was humorless.”

“He also said somebody made a choice.”

Arthur looked back. “People say things when they’re frightened.”

“Did you?”

For a moment Arthur seemed ready to answer. Instead he walked out, leaving the smell of his cologne hanging over the sawdust.

June sank onto a stool. “He used to be the one who taught me how to build things,” she said. “Now I don’t know what he’s protecting.”

9. THE CLOSED ROOM

At four-thirty, with the contractor’s permission nearly expired, Nessa led them to the blue room. It was behind a steel fire door on the far side of the stage. A warning sign had been screwed into the frame. Nessa said the survey crew had cleared the area, but nobody was to touch the equipment.

Inside, the air was colder than the rest of the building. Six enormous walls stood on tracks around a circular platform. Their surfaces were painted with windows, stars, sea creatures, and a dark blue sky. The room looked like a child’s dream interrupted halfway through.

Lily stepped onto the platform. For a moment she could almost hear music. Her father had held her hand here once, perhaps before the performance. She remembered the bright paper boat and a voice telling her not to step across the yellow line.

June pointed out the control station, the emergency lever, and the guide rails. Walter stood beside the second winch, his injured hand hanging uselessly at his side.

“I operated this one,” he said. “I remember the sound when the third wall kept moving. A metal scrape. Not a bang. A scrape that went on too long.”

Lily crouched beside the rail. The guide bracket had indeed been moved. The new bolts were bright beneath a layer of dust. Someone had installed them recently and tried to disguise the work with gray paint.

“Nessa,” Lily said, “does the new display use this rail?”

“It shouldn’t. It’s being built in the parking structure.”

“Then why repair it?”

June examined the emergency lever. A cable ran from its base toward the wall. She pulled lightly. Nothing moved. The cable had been disconnected.

Walter whispered, “That’s how it was after the accident.”