Enola Holmes is the much younger sister of her more famous brothers, Sherlock and Mycroft, but she has all the wits, skills, and sleuthing inclinations of them both. When a young professional woman, Miss Letitia Glover, shows up on Sherlock's doorstep, it is Enola who steps up. It seems that Letitia's sister, the former Felicity Glover, married the Earl of Dunhench and per a curt note from the Earl, has died. But Letitia Glover is convinced this isn't the truth. The Earl's note is suspiciously vague and the death certificate is even more dubious. Enola's interest is piqued but the only way forward is for her to go undercover -- at the vehement objection of Sherlock. The secret of Felicity's fate is tied to a mysterious black barouche and to uncover the hidden menace within the Earl's hall, Enola is going to require help -- from Sherlock, from the twin sister of the missing woman, and from an old friend, the young Viscount of Tewkesbury, Marquss of Basilwether! -- From back cover.