This page is the index for the Encyclopaedia Arcana, a series of articles about the background and setting of the world of the Alex Verus novels. If you want to know more about the rules of magic or the general structure of the Alex Verus world, this is the place to look.
Note that this Encyclopaedia covers ‘big-picture’ topics – magic types, how spells work, the political structure of the Light Council and their relations with Dark mages, and so on. If you want to know anything more personal about Alex, Luna, or their friends, you’re better off going to the Ask Luna page.