Then silence. Someone had switched it off. Smeared skylights illuminated a swirling galaxy of dust motes. The roof space was bigger than Danny would have guessed. High enough to stand. Lexie had stepped aside to let him through. He pressed his finger to his lips, to ensure she didn’t make the mistake of thinking that just because those men could no longer see her, they couldn’t hear her as well. But he needn’t have bothered. She’d already worked it out. She squeezed past him without speaking and set off along a wooden walkway. Danny couldn’t help noticing her balance. She crawled like a cat. A natural. Just the same as she’d been when he’d first started teaching her judo as a kid. After ten metres, she stopped and turned to face him. ‘We’re above the library now.’ A barely audible whisper. There were tears in her eyes. ‘Those men … they looked like they wanted to shoot you.