King Solomon's Carpet (Penguin audiobooks)

Drawn together by their connection to the London Underground, Jarvis and his tenants live in a crumbling schoolhouse overlooking the Jubilee Line. There is Tom, the music student turned busker; Jed, the night-rider, devoted only to his hawk; Jasper and the truant boys, riding terrifyingly high above the tracks. Alice, also a busker, is trying to forget the life she has left behind, but she becomes obsessed with Axel: sinister Axel who uses the tube to hatch his horribly destructive plan.