A romp through Edwardian-era Stamboul in high summer in 1906; with colourful descriptions of jewelled swords that rule empires, ghosts that haunt palaces, and tyrannical rulers flanked by their murdering eunuchs.Holmes and Watson are reunited after a threat is uncovered to steal the Sword of Osman from the ruler of the Turkish Empire – a theft that could see the fall of the Ottoman Empire and have cataclysmic results the world over. The world would be brought to the brink of war; the fortunes – and indeed lives – of thousands are once again in Holmes’ his hands. A tale of espionage, double-crossing, intrigue, and murder ensues.