A Bechdel test for protagonist-centered worldbuilding!

ETA: It occurs to me that part of the reason I struggled with The Blue Sword (hearkening to the other entry) is that the world-building is very centered on Harry. For instance, we get exactly one Hill myth (the story of Aerin) and it's the one that happens to have entangled Harry in its trammels. It would have added a lot if there was, IDK, a story about the naiad of an oasis or whatever, which was utterly unrelated to Harry in any way.