The worst incident at school occurred in early November, when Mrs Whitmore discovered Leo drawing during an English lesson about Victorian literature. The class was supposed to be writing a short paragraph describing a factory in nineteenth-century London. Leo had written only one sentence before filling the rest of the page with an elaborate arrangement of circles and connecting lines. MMrsWhitmore took the paper from him and held it up. “Would anyone like to explain why Leo has apparently decided to redesign a washing machine instead of completing his assignment?” Several children laughed. Leo reached toward the page. “It’s not a washing machine,” he said. Mr Mrshitmore raised an eyebrow. “Then what is it?” He hesitated. He had been sketching an idea for a spring-driven timer that might make a gentle sound without electricity. He wanted something Lily could use when she felt anxious at night, a harmless device that would help her know when an adult was coming to check on her. But explaining that required explaining his father’s accident, his mother’s death, and the reasons he worried about Lily. “It doesn’t matter,” he muttered. Mrs Mitmore looked disappointed. “Then perhaps you can explain why you’ve decided your drawings matter more than your education.” Leo stared at the desk. “I didn’t say that.” Her expression hardened. “Don’t argue with me. You’ll finish this during lunch.”

That afternoon, Leo missed a planned telephone call with his father because he was completing the punishment. The hospital had arranged a time when Thomas would be sufficiently rested to speak, and Leo had promised Lily that they could both say hello. Mrs Mrsl eventually helped Lily take the call, but Thomas was too tired to speak again by the time Leo returned home. His sister was upset with him for missing it. She sat on the sofa holding a drawing she’d made for their father and asked why school was always making him stay late. Leo told her he’d done something wrong. Lily looked at him seriously. “You’re not bad,” she said. He smiled, but the words unsettled him. At school, teachers increasingly treated him as a child who chose not to cooperate. At home, Lily treated him as someone who knew how to fix everything. He felt trapped between two versions of himself, neither of which allowed him to admit that he was frightened and overwhelmed.

The museum trip took place on a grey, grey day. Brookfield Primary had arranged a visit to the West London Museum of Mechanical History as part of a unit on industrial Britain. The museum occupied a restored Victorian engineering building and contained early manufacturing equipment, telegraph instruments, railway models, and a collection of clocks and precision mechanisms. Mrs Whitmore had spent days preparing the class, reminding them about behaviour, safety, and the importance of respecting fragile historical objects. Leo was unusually excited. He had read about some of the exhibits in his father’s manuals and had never seen such complex mechanisms outside photographs. He woke before his alarm, packed his notebook, and put on the cleanest uniform he could find. Lily asked him to bring back a picture of something beautiful. He promised that he would.

The trip began well. Leo listened intently as the museum guide explained how industrial workshops used clocks and timing devices to coordinate shifts. He stood near the front of the group, asking questions about escapements, weights, and the difference between traditional clock movements and later electrical systems. Mrs Whitmore was surprised by his attention. She watched him identify a component in a display case before the guide described it and briefly wondered whether his interest in mechanics was more substantial than she’d assumed. Then another student complained that Leo was showing off, and she reminded him not to interrupt. He fell silent. The group moved into a gallery devoted to nineteenth-century public clocks, where a large brass-framed regulator stood inside a protective enclosure near the wall. Its polished pendulum swung slowly behind glass, and a small display explained how the mechanism had once helped maintain accurate time in a railway workshop. The clock was valuable not because it contained jewels or gold, but because so few examples of its design remained in working condition.

Leo noticed something unusual before anyone else did. The ticking seemed irregular. He had spent enough time listening to his father’s clocks to recognise that something was wrong, although he couldn’t have diagnosed the cause simply by hearing it. He moved closer to the enclosure, studying the movement visible through the glass. The pendulum occasionally seemed to hesitate. A faint metallic scraping sound came from within the cabinet. Leo remembered his father warning him that unusual resistance in old mechanisms could indicate wear, an obstruction, or a fault requiring professional attention. He knew he should tell an adult. He looked around for the guide, but the woman was explaining another exhibit to a cluster of pupils. Mrs Whitmore was speaking to a museum volunteer near the doorway. Leo raised his hand, then lowered it when no one noticed.

Beside the clock, a maintenance cart had been left in an area separated from visitors by a low barrier. A screwdriver lay on its tray, along with gloves and a small inspection lamp. Leo hesitated. He knew he wasn’t allowed to touch museum objects. He also knew that the clock might be damaged if it continued running with a fault. In his mind, the situation resembled the small mechanical problems he had watched his father correct countless times. If something was going wrong, surely the responsible thing was to stop it before it became worse. His fear of allowing a problem to worsen overwhelmed his judgment. He stepped beyond the barrier, picked up the screwdriver, and approached the access panel at the rear of the clock cabinet. He did not understand the conservation requirements, the hazards of stored mechanical energy, or the possibility that an apparently minor intervention could damage an irreplaceable object. He thought only that he had to do something before it broke.