M. L. Huie returns with the next Livy Nash historical mystery, perfect for fans of Susan Elia MacNeal's Maggie Hope series and Kate Quinn's The Alice Network. How far would you go to rescue a friend? British spy Livy Nash has never had many friends. But fellow agent Margot Dupont was the exception to the rule. At least, until she disappeared during one of their missions in World War Two, never to be heard from again. Since...