Book excerpt: Ghosts traditionally make their presence felt in many ways, from unexplained footfalls and chills to odours and apparitions. This fascinating volume takes a look at some of the strange and unexplained hauntings across Britain's railway network: signals and messages sent from empty boxes; trains that went into tunnels and never left; ghostly passengers and spectral crew; the wires whizzing to signal the arrival of trains on lines that have been closed for years.... Based on hundreds of first-person and historical accounts, Shadows in the Steam is a unique collection of mysterious happenings, inexplicable events and spine-chilling tales, all related to the railways. Compiled by David Brandon and Alan Brooke, acknowledged experts on railways and the supernatural, and including sections on the London Underground and railway ghosts in literature and film, this book will delight lovers of railways and spooky stories alike.