The three ghost finders ran full tilt through Oxford Circus Station, chasing the ghost as she receded endlessly before them, appearing and disappearing and reappearing. JC led the way, pursuing Kim down the endless white-tiled corridors, dashing in and out of low-arched entrances and exits, onto station platforms and off again; and still she hung on the air before him, drawing him on like some ghostly will-o’-the-wisp. Sometimes she was directly ahead of him, so close he could almost reach out and touch her, sometimes so far ahead she was only a pale figure in the distance. She wasn’t moving of her own accord. He knew that. He could see it in her face, and in her eyes. Sometimes she called out to him, but her voice only came to him as the barest whisper. Something was using her as bait, drawing him like a fish on a line. JC knew that, but he kept going anyway, running as fast and as hard as he could drive himself. Because this was his job, because he had to stop the haunting from spreading . . . and because he couldn’t, wouldn’t, let Kim down.

Happy and Melody pounded doggedly along behind him, keeping up as best they could. Happy’s face was an unhealthy red, and already he was labouring for every breath. Melody’s arms pumped at her sides like a sprinter’s though it didn’t seem to be helping her much. They both knew the ghost was bait, luring them on into some kind of trap, but they trusted JC. Just as he trusted them to have his back. They were a team, and they were professionals, and God help whatever was behind all this when they finally caught up with it.

Howling winds came blasting out of nowhere, hitting JC like a hammer, slamming him in the face hard enough to blow harsh tears from his eyes. The wind came roaring out of several side tunnels at once, bringing JC to a sudden halt and buffeting him this way and that. He fought it savagely, forcing himself on into the face of the bitter-cold gale-force winds. He dug his feet in, leaned forward with his head well down, and drove himself on, step by step. Happy and Melody were right behind him; using him as a wind-break and urging him on. In the face of such stubborn resistance, the wind itself seemed to lose heart, and all at once it fell away and was gone. JC saw Kim floating not far ahead, and was off and running again, followed by the others.