The Secret of Chimneys

Miss Marple finds herself spending the weekend at Chimneys, the stately home of Lord Caterham whose late wife was her cousin. The weekend has something of a diplomatic air to it as the Austrian Count Ludwig von Stainach is also there to negotiate a trade agreement with the British that will give it access to iron ore. Chimneys was once the 'in' place to be for a fancy weekend but over many years, it has become somewhat run-down. An important person goes missing, and Marple's search leads to a decades-old murder that might be connected to a mysterious diamond theft.