Death Plays a Part by Vivian Conroy. Published by HarperCollins UK

Guinevere is excited to begin a new job at a castle on a lovely island off the coast of Cornwall. She and dachshund Dolly, are looking forward to a wonderful summer. But the theatrical costume maker is caught up in a reenactment of a centuries old trial that ends with a real murder. Dolly and Guinevere and a cast of locals sift through the areas long-held grudges and closely kept secrets to unmask a killer. This is the first in a new series and it’s off with a bang, literally! Take your own summer vacation to Cornwall with this fun cozy mystery