Agatha Christie Wiki

Much Benham is an English town two miles from the village of St. Mary Mead. It’s where Inspector Slack is based.

The Hartley Napiers live in Much Benham. They are friends of Lettice Protheroe and Dennis Clement.

The Much Benham road

While investigating the death of Emily Arundell, Hercule Poirot visited a house agent in Market Basing under the guise of looking for a property. He received brochures about several properties. One located in Hemel Down, three miles from Market Basing, on the Much Benham road.