Reasonably good 3rd ed supplement for Pendragon set in Cambria (Wales) that may be of interest to 5th ed owners.
Not much info on Cambrian culture or society here really but the book (as usual for a lot of Pendragon supplements) has a lot of great locations for adventure hooks as well as the city of Carlion-on-Usk.
Where this supplement really shines though is in the adventures of the Dolorous Wyrm and the Paulag Cat. There's also a really good, lengthy campaign players can participate in Arthur's war against the Cambrian tribes.
Not an essential buy but good value for money.