Nancy Springer - Elona Holmes Series (01 - 06)

The Case of the Missing Marquess - #1
On her 14th birthday, Enola Holmes, much younger sister of Sherlock Holmes, discovers her mother missing. Disguised as a grieving widow in the heart of London, suddenly she is involved in the kidnapping of the young Marquess of Basilwether. Enola must escape murderous villains, free the spoiled Marquess, elude her brother, and find their mother.

The Case of the Left-Handed Lady - #2
Enola Holmes is hiding from the world's most famous detective - her own brother, Sherlock Holmes. But when she discovers a hidden cache of bold, brilliant charcoal drawings, she learns their artist Lady Cecily disappeared from her bedroom without a trace. Following clues - leaning ladder, shifty clerk, political pamphlets - she may reveal too much.

The Case of the Bizarre Bouquets - #3
Sherlock Holmes is missing his right hand man, Dr Watson. His much younger sister Enola is hiding from her older Holmes brothers, but knows the bizarre bouquet that arrives at the Watson residence spells death - convolvulus, hawthorn, and white poppies. She dons her most discerning disguise, and seeks the sender.

The Case of the Peculiar Pink Fan - #4
When Enola Holmes encounters her friend Lady Cecily hiding behind a pink fan, she finds it peculiar. Cecily is being held hostage in an abysmal orphanage, forced into a miserable marriage. Enola joins forces with the much older famous brother Sherlock who she has fought desperately to elude, and risks her own freedom to rescue her friend.

The Case of the Cryptic Crinoline - #5
Other than her occasional run-ins with her brother Sherlock, and missing her mother, Enola has little friends and family. While kind, homely Mrs Tupper is nearly deaf and cannot cook to save her life, the landlady is her nearest and dearest - and kidnapped. And somehow Florence Nightingale is involved. Enola is on the case.

The Case of the Gypsy Good-bye - #6
In the series conclusion, Enola searches for missing Lady Blanchefleur while her brother Sherlock seeks her, with a message from their long-lost mother that only Enola can decipher. Sherlock and brother Mycroft follow Enola into London's dark underbelly to solve a triple mystery. Where is their mother, Lady Blanchefleur, and their connection?