The new project from Gatiss, which follows his previous ghost stories The Tractate Middoth, The Dead Room, Martin\u2019s Close, The Mezzotint\u00a0and Count Magnus<\/a>, will be the first time he has penned one of Conan Doyle\u2019s horror stories for TV.<\/p>\n The official synopsis for the story says: \u201c[It] revolves around a group of Oxford students, one of whom undertakes research into the secrets of Ancient Egypt which become the talk of the college.<\/p>\n \u201cCan these experiments truly breathe life to the horrifying bag of bones which is the mysterious Lot. No 249?\u201d<\/p>\n The one-off programme will star Game of Thrones<\/a>\u2018s Kit Harington as Abercrombie Smith, while Slow Horses<\/a> star Freddie Fox will play Edward Bellingham.<\/p>\n The rest of the cast will include Colin Ryan (Boundless), John Heffernan (Dracula), James Swanton (Stopmotion), Jonathan Rigby (Father Brown<\/a>) and Andrew Horton (Slotherhouse). Read more:<\/strong><\/p>\n Gatiss said: \u201cIt\u2019s a serious delight for me to delve once again into the brilliant work of Sir Arthur Conan Doyle, this time for the Christmas ghost story.<\/p>\n \u201cLot No. 249 is personal favourite and is the granddaddy (or should that be mummy?) of a particular kind of end of empire chiller: a ripping yarn packed with ghastly scares and who-knows-what lurking in the Victorian closet\u2026\u201d<\/p>\n The programme has already completed its filming in Hertfordshire, and will air on BBC Two this Christmas.<\/p> Earlier this year, Gatiss was asked about whether he would return to Sherlock, his modern day adaptation of Conan Doyle\u2019s most famous works, which he co-created with Steven Moffat<\/a>.<\/p>\n![\"Mark](\"https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/3\/2023\/10\/GettyImages-1712512947-202b608.jpg?quality=90&resize=620%2C413\" "\\"Mark")
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