A Sixth Doctor Audio Adventure on a double CD starring Colin Baker, guest starring James MacCallum as Isambard Kingdom Brunel and and Christopher Fairbank as Marc Brunel.
Excavation is underway for the Thames Tunnel, the first ever tunnel dug beneath a river. The Brunels, the engineers responsible for the project, are set to make history. If only the rumours of the tunnel being haunted would go away... Having already written some acclaimed sci-fi tales in The Memory Bank and The Middle, fledgling writer Chris Chapman now turns his hand to a celebrity historical, mixing the scientific with the supernatural. The Regency England setting should provide an evocative atmosphere for this tale of ghosts and dark tunnels.