What is the main setting in the novel, The Crimson Crown?

The Crimson Crown is set in the fictional world of the Fell. In this world, the people live between two large mountains in a place called the Vale or with the clans in the mountains. The area is ruled over by one queen, the Gray Wolf Queen. In this world, wizards are natural born magicians who use magic jewelry called flash to focus and use their powers. However, a difficult time between a much beloved queen and her much hated wizard lover has caused lasting tensions between the people of the Fells, especially the clans and the wizards.