The Faery Chronicles series contains three novels, with more forthcoming in 2018, and quite a lot of short stories. The stories chronicle the characters’ adventures in between the novels.
Each story or novel can be read as a standalone, so it’s not necessary to have read everything to enjoy any particular one. But the experience is richer if you’ve had the chance to savor it all.
Because readers have asked, I wanted to include a list of the Faery Chronicles series, in order.