Murder in the Maze — Sarah J. Mason

FATAL FETE
The village of Redingote anticipated the usual misbehavior during the annual summer fete. But no one expected a murder... least of all the victim, Dr. Radlett's beautiful young wife, found dead center in the hedge maze.

INTRODUCING TREWLEY AND STONE
Detective Superintendent Trewley has years of experience probing the dark secrets of cozy English village life. But even he can use a bit of help sometimes. That's where Detective Sergeant Stone comes in: with the mind of a scientist and a black belt in judo, she's the perfect partner for tough old Trewley. And together, they're set to solve the puzzle of Mrs. Radlett's death--if they don't get lost in the middle of a maze of clues first...