Recs if you like Avalon...

Fantasy or speculative fiction set in the time of King Arthur / with Arthurian characters or influence.

Arthurian history, mythology, legends, fantasy, and retellings from history and modernity, as well as books and stories directly inspired by Arthurian myth. Series include just the first book as this list started to get very long

fantasy prior to the 1970s before Del Rey publishing ruined the genre with their "formula for success”

a list for fiction books set in cornwall, even if only for part of the story. (title is from a quote by thomas hardy)