A study in sable Elemental masters series, book 11.

Introducing Sherlock Holmes and John Watson to the magical early 20th century London of Mercedes Lackey's Elemental Masters series! Psychic Nan Killian and Medium Sarah Lyon-White-along with their clever birds, the raven Neville and the parrot Grey-have been agents of Lord Alderscroft, the Elemental Fire Master known as the Wizard of London, since leaving school. Now, Lord Alderscroft assigns them another commission: to work with the famous man...