In Whitechapel, a renowned Italian escape artist dies spectacularly on stage during a performance - immolated in a gleaming copper cauldron of his wife's design. In Cambridge, the runaway daughter of a famous don drowns, her long blonde hair tangled in the Jesus Lock on the River Cam. And in Baker Street, a malevolent locksmith exacts an unusual price to open a small silver box sent to Watson.
From the glow of the London stage to the buzzing Cavendish Laboratory in Cambridge, where physicists explore the edges of new science of electricity, Holmes and Watson race between the two cities to solve the murders, encountering prevaricating prestidigitators, philandering physicists and murderous mentalists, all the while unlocking secrets which may be best left undisclosed. And one, in particular, lands very close to home.

Holmes and Watson face treachery and danger in the latest full-length thriller by Bonnie MacBird, author of the bestselling Sherlock Holmes novel Art in the Blood.
Murder, jealousy, and deceit underscore three interlocking mysteries as Holmes and Watson take on a high profile case at Windsor Castle, a boy drowned in the Serpentine, and a crusading women's rights activist who suspects a traitor in her organisation. The cases send them into danger into locales as varied as the palace itself, a dockland cannery, an arts and crafts atelier, and a gypsy encampment. But is there peril underfoot as well - right at 221B Baker Street?
The twisting, breathlessly plotted conjoined mysteries that Bonnie MacBird is known for provide a thrill ride that will delight Sherlockians worldwide.