Colin Baker (The Doctor), James MacCallum (Isambard Kingdom Brunel), Christopher Fairbank (Marc Brunel), Catherine Bailey (Tan), Imogen Church (Rispa / Lady Raffles), Becky Wright (Flo Hawkins / Alayna), Anthony Townsend (Richard Beamish / John Chubb), Sam Woodward (Charlie / Lord Raffles / Captain Sanderson), Richard Unwin (Tour Guide / Scientist).
It’s London, 1828, and the father-and-son team of Marc and Isambard Kingdom Brunel are masterminding a dangerous project – the digging of the Thames Tunnel. There’s just one problem…
The Brunels’ tunnel is haunted. Every night, a spectral blue lady walks the excavation.
Now, the 22-year-old Isambard, eager to step out of his famous father’s shadow, finds himself dealing with not only the supposed supernatural, but a second unexpected guest – a colourful trespasser who calls himself ‘The Doctor’.
Isambard would like to know a great deal more about this strange man and his mysterious blue box…
Written By: Chris Chapman
Directed By: John Ainsworth
- This was the first Main Range story to use a revised cover layout, the first time to have changed the house style significantly since Renaissance of the Daleks. It featured the new Doctor Who logo introduced by Little Hawk in 2018. Previous to that, a cover using the ‘sidebar’ layout was released.
- An alternate cover was released with a similar house style, but with the era appropriate font and logo.
- The Doctor collects Brunel’s business card, which he puts with his collection of cards from”geniuses”. (The Two Doctors)
- The Doctor later met an alternate version of Isambard Brunel. (Reckless Engineering)