To my mind there are really only two kinds of novels, badly written and well written. Beyond that, you cannot categorize… ‘Storyteller’ is an old and honorable title and I’d like to lay claim to it.
Mary Stewart (1916 - 2014) is a British novelist, known for her significant contributions to multiple genres. She was of the most prominent - and critically-acclaimed - creators of the romantic thriller. Stewart then went on to write the Merlin series, a best-selling blend of history and fantasy.
Her romances and suspense books aren’t totally relevant to an ostensibly fantasy site, but they’re damn good books - and show how you can breathe new life into a genre by lifting/learning from others. Stewart is credited as one of the primary inventors of the 'romantic thriller', with young women facing peril in exotic locations.
Her books are also notable for a few different reasons:
Incredible scenery. The scenic descriptions are a masterclass, you can practically breathe the air. They’re worth reading for potential writers (especially of fantasy), as they bring landscape and location to life. Stewart took setting seriously, and noted that “research is most useful when dealing with place rather than action. After all, you're inventing almost all of the story anyway.”