Book excerpt: Arriving for work at the Design Studio in the Coach House of Haslop Hall in the Cotswolds, Tracy Yorke finds her boss murdered. The police investigation shows that many people might have had cause to kill Oliver Medway — including Tim Baxter whom Tracy has started to love. She can trust nobody, and finds her life in grave danger. British Mystery by Nancy Buckingham writing as Erica Quest; originally published by Doubleday for the Crime Club