"It's summertime on the Riviera, where the Jazz Age is busily reinventing the holiday delights of warm days on golden sand and cool nights on terraces and dance floors. Just up the coast lies a more traditional pleasure ground: Monte Carlo, where fortunes are won, lost, stolen, and hidden away. So when Mary Russell and Sherlock Holmes happen across the Côte d'Azur in this summer of 1925, they find themselves pulled between the young and the old,...

Rising War Office star Mycroft Holmes persuades his brother, Sherlock, to volunteer at a friend's orphanage, where the suspicious death of a street urchin and a mysterious Chinese woman lead the brothers into the London opium trade's dark underside.

"A queen, a castle, a dark and ageless threat--all await Mary Russell and Sherlock Holmes in this chilling new adventure. The queen is Marie of Roumania: the doubly royal granddaughter to Victoria, Empress of the British Empire, and Alexander II, Tsar of Russia. A famous beauty who was married at seventeen into Roumania's young dynasty, Marie had beguiled the Paris Peace Conference into returning her adopted country's long-lost provinces, single-handedly...

Sherlock Holmes and Dr. Watson investigate the reappearance of a seemingly supernatural hound, bent on destroying the House of the Baskervilles in accordance with an ancient curse.