
"The Terror at Blue John Gap" will be a loose adaption of Doyle's horror tale "Blue John Gap" (also known as The Horror of The Heights") This film, while largely playing out to the basic story and characters from the original book, also intertwines the work of Doyle with that of H.P Lovecraft. Similar to the upcoming Challenger film, this will also serve as an appendices piece for the upcoming 8th No Place Like Holmes series, and will play a large part in explaining more of the fantastical mythology elements behind the show.
Playing the lead role of Dr. James Hardcastle is Philip Kay. Other cast thus far confirmed include Michaela Mackensie as Miss Allerton and Edward Helsing as Armitage.