Outlander star Sam Heughan's character Jamie Fraser in the hit TV show after it was revealed they are set to get their own book.Author Diana Gabaldon confirmed on Twitter that a book about Ellen and Brian Fraser was “in progress”.The response came after a fan asked if she'd ever thought about writing a prequel to Outlander about Jamie’s parents.Both Brian and Ellen remain popular, if little seen, characters in both the books and the show, with Jamie even asking Claire to name their first-born