Mrs. Jeffries Learns the Trade: The First Three Mrs. Jeffries Mysteries; The Inspector and Mrs. Jeffries, Mrs. Jeffries Dusts for Clues and The Ghost and Mrs. Jeffries (The First Three Mrs. Jeffries Mysteries)
The First Three Mrs. Jeffries Mysteries: The Inspector and Mrs. Jeffries, Mrs. Jeffries Dusts for Clues, and The Ghost and Mrs. Jeffries.