Agnes Sharp and the Trip of a Lifetime: The bestselling cosy crime sensation for fans of Richard Osman, by Leonie Swann (paperback)
 
Sunset Hall doyenne Agnes Sharp is only too pleased when her housemate Edwina wins a trip to a spa hotel in Cornwall - heaven knows the group of elderly sleuths could do with a change of scenery. But it quickly becomes apparent that the hotel is no paradise, despite the romantic package and five-course menu.
 
As soon as they've made themselves comfortable, Agnes thinks she's witnessed a murder on the cliffs. And it soon becomes clear that the perpetrator is among them. Will Agnes and her friends survive their holiday?