Orbiting above London is a mysterious ship, a duplicate of the St Pancras railway station. The Doctor, with the aid of the adventurer, Iris Wildthyme, bargains to stop creatures determined to infiltrate in the guise of characters from nineteenth century novels.[3] The Doctor is cut off from many of his friends and allies.
Continuity
Iris Wildthyme had earlier appeared in other Paul Magrs written Doctor Who stories, such as a short prose found in the first two volumes of BBC Books' Short Trips series and The Scarlet Empress. The character would later be expanded into her own spin-off series of books and audio dramas. In the audio dramas, Wildythme is portrayed by Katy Manning, who originally portrayed Jo, a character featured heavily in this book.