A Most Efficient Murder: A 1920s Country House Mystery (The Mr. Quayle Mysteries) by Anthony Slayton

When the reclusive Earl of Unsworth’s first party in over a decade is spoiled by murder, His Lordship’s loyal and efficient secretary, Mr. Quayle, must unravel a web of red-herrings and buried secrets in this "English country house mystery infused with humor, verve, and plenty of surprises." (Kirkus Reviews)

“I do not wish to disturb you, your lordship, but there is a body in the garden…”

England, 1925. When a strange young woman is found murdered on the grounds of Unsworth Castle, the Earl and his family are astounded at first, but quickly become enraged when the police begin asking all sorts of impertinent questions.

And when suspicions dare to fall on one of their own, it is up to Mr. Quayle, Lord Unsworth’s exceedingly efficient secretary, to find the true culprit and save the House of Unsworth from scandal and ruin.