"The bestselling crime writer and Scotland’s first female Geographer Royal had long kept their work separate, until a chance discovery about a doomed 17th-century expedition forced them to collaborate." This interview with Val McDermid and jo Sharp is an intriguing read, and I'm confident the book will be too. https://www.theguardian.com/books/2026/jul/28/val-mcdermid-jo-sharp-this-door-of-the-seas