Have His Carcase (Lord Peter Wimsey mystery series Book 8) by Dorothy L Sayers is $1.99 for Kindle today! The cover blurb says: Harriet Vane has gone on vacation to forget her recent murder trial and, more importantly, to forget the man who cleared her name—the dapper, handsome, and maddening Lord Peter Wimsey. She is alone on a beach when she spies a man lying on a rock, surf lapping at his ankles. She tries to wake him, but he doesn’t budge. His throat has been cut, and his blood has drained out onto the sand.
As the tide inches forward, Harriet makes what observations she can and photographs the scene. Finally, she goes for the police, but by the time they return the body has gone. Only one person can help her discover how the poor man died at the beach: Lord Peter, the amateur sleuth who won her freedom and her heart in one fell swoop.