Hiding from Sherlock and her other brother, Mycroft, who want to place her in a boarding school following their mother's disappearance, Enola has reinvented herself as Ivy Meshle, secretary to the fictitious Dr. Ragostin, specialist in finding missing persons. Her new client? None other than Sherlock's friend, Dr. John Watson! His mission: to employ Dr. Ragostin to find the missing Enola! She decides to take the case, only so she can keep tabs on Sherlock's every move to locate her.