This is a Victorian mystery reminiscent of the Miss Marple tales of the Agatha Christie fame. However, instead of just one amateur detective, there is a whole house full of them. All the servants of the small household want to help their master Detective Gerald Witherspoon on his more difficult cases.
Their plan as always is to snoop around on their own and meet daily to compile their information and attempt to solve the mystery before he does. They do this unbeknownst to their employer. They need to do it on the sly and between their usual tasks as those who keep the household running. They love their employer who looks upon his household staff as family and treats them very well indeed.
Their methods are sometimes not as above board as they should be, since stretching the truth and downright lying are acceptable and they fully believe the end justifies the means.
It is surprising that their network comes through for them usually. The underground of the servants in the best houses know more than they should about their masters and their upper-crust guests. Much knowledge is available at the cost of a cup of tea or maybe a couple of those renowned tarts of the cook, Mrs. Goodge.
If you enjoy a mystery filled with the cleverest ways of obtaining information and a group that pieces together information like a jigsaw puzzle, you will love this band of conspirators. I highly recommend this book and it is a happy day to discover that she has produced many more Mrs. Jeffries Mysteries.