As Enola searches for the missing Lady Blanchefleur del Campo, she discovers that her brother Sherlock is just as diligently searching for Enola herself! Sherlock and Enola must solve a triple mystery: What has happened to their mother? And to Lady Blanchefleur? And what does either have to do with their brother, Mycroft?

"Flat-out among the best mysteries being written for young people today." - Booklist, starred review

Don't miss Enola Holmes: The Case of the Missing Marquess! Now a Netflix original movie starring Millie Bobby Brown, Henry Cavill, and Helena Bonham Carter!