When Enola Holmes, sister to the detective Sherlock Holmes, discovers her mother has disappeared, she quickly embarks on a journey to London in search of her. But nothing can prepare her for what awaits. Because when she arrives, she finds herself involved in the kidnapping of a young marquess, fleeing murderous villains, and trying to elude her shrewd older brothers--all while attempting to piece together clues to her mother's strange disappearance....

While fourteen-year-old Enola Holmes endeavors to save her friend Lady Cecily Alistair from an unwelcome arranged marriage, she meets with some assistance from her older brother, Sherlock, and interference by the eldest, Mycroft.

After fourteen-year-old Enola Holmes seeks the missing Duquessa Del Campo in the seedy underbelly of nineteenth-century London, she finally reaches an understanding with her brothers Sherlock and Mycroft.

Raised by her mother on the family's country manor, Enola wakes on her 14th birthday to discover that her mother has disappeared, leaving only a collection of flowers and a coded message book. With Sherlock and Mycroft determined to ship her off to a boarding school, Enola escapes, displaying a cleverness that even impresses the elder Sherlock. But nothing prepares her for what lies ahead. Her journey quickly leads her into the dark and sordid neighborhoods...

"Enola Holmes, the much younger sister of Sherlock, is now living independently in London and working as a scientific perditorian (a finder of persons and things). But that is not the normal lot of young women in Victorian England. They are under the near absolute control of their nearest male relative until adulthood. Such is the case of Enola's friend, Lady Cecily Alastair. Twice before Enola has rescued Lady Cecily from unpleasant designs of her...