This Elemental Masters story has Nan and Sarah working with the Watsons to find a set of missing siblings. Sherlock is in the area working on case behind the scenes since he is still supposed to be dead. The Hansel and Gretel tale is the basis for the story, and for the case it works well. Knowing the backstory is always nice but someone could pick this up and not be lost missing everything that has happened previously between the characters since the main bits are dropped in during the first half of the book. A nice light read that makes me want more stories with Nan and Sarah.

