In 1810, Lucy Bluecrowne, twelve, is bored living ashore with her stepmother and half brother until two nefarious strangers identify her little brother as the pyrotechnical prodigy they need for their evil plan.
Nothing is what it seems and there's always more than one side to the story as a group of strangers trapped in an inn slowly reveal their secrets in this new standalone mystery set in the world of the best-selling Greenglass House.