{"product_id":"the-adventure-of-the-khartoum-s-humphreys-9798181332379","title":"The Adventure of the Khartoum Cipher: A Sherlock Holmes novel","description":"\u003cp\u003eNovember 1898. A decorated veteran of the Sudan campaign is found dead in a locked Whitehall office - no wound, no struggle, only a strip of Arabic parchment clutched in his hand and an expression of terror frozen on his face. The official verdict is heart failure. Sherlock Holmes knows better.\u003c\/p\u003e\u003cp\u003eThe parchment carries a cipher. When Holmes decodes it, the message is stark: six coordinates marking the route of a thanksgiving procession scheduled for the seventeenth of November, at which both the Prime Minister and the Commander-in-Chief of the British Army will be present. Nine days away.\u003c\/p\u003e\u003cp\u003eThe dead man, Major Reginald Ashby, had been running an unsanctioned surveillance operation - alone, without official support - tracking a cell of Mahdist operatives who had followed Kitchener's army back to England from the plains of Omdurman. His report had been submitted through the correct channels. It had been classified and buried within forty-eight hours.\u003c\/p\u003e\u003cp\u003eNow Ashby is dead, his intelligence suppressed, and the cell is still in London.\u003c\/p\u003e\u003cp\u003eHolmes and Watson have nine days to find them.\u003c\/p\u003e\u003cp\u003eThe investigation takes them from the fog-shrouded docks of Wapping to the smoke-filled coffee houses of Stepney, from the ordnance workshops of Woolwich Arsenal to a cellar in Limehouse three streets from the river - where, on the night of the sixteenth of November, everything will be decided.\u003c\/p\u003e\u003cp\u003e\u003ci\u003eThe Adventure of the Khartoum Cipher\u003c\/i\u003e is a full-length Sherlock Holmes pastiche set in the aftermath of the Battle of Omdurman, combining the authentic Victorian atmosphere of the original stories with a mystery rooted in the intelligence failures, imperial anxieties, and quiet heroism of the age. For readers of Arthur Conan Doyle, Anthony Horowitz, and David Stuart Davies.\u003c\/p\u003e\u003cp\u003e\u003ci\u003eEdited from the papers of Dr. John H. Watson, M.D., by S Humphreys.\u003c\/i\u003e\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e S. Humphreys\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9798181332379\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Independently Published\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 06\/13\/2026\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 322\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.95lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.00h x 6.00w x 0.67d","brand":"S. Humphreys","offers":[{"title":"Paperback","offer_id":49002025484543,"sku":"9798181332379","price":14.73,"currency_code":"USD","in_stock":true}],"url":"https:\/\/www.whiterainbookhouse.com\/products\/the-adventure-of-the-khartoum-s-humphreys-9798181332379","provider":"WR Book House","version":"1.0","type":"link"}