On her fourteenth birthday, Enola's mother disappeared. Enola followed her footsteps shortly thereafter, trying to stay one step ahead of her brothers (Mycroft and Sherlock) at all times. Now she solves cases in London by day, by pretending to be a great detective's secretary, and helps the indigent of London by night, in disguise as a veiled nun. In this adventure, Enola tries to solve the mystery of a missing young lady, who appears to have climbed down a ladder and walked off into the night.
I liked this possibly even better than the first book. Enola and Sherlock Holmes dance around each other, each trying to know more than the other, and their battle of wits was a lot of fun to read.