User blog comment:SayuriDarling/The Sword of Summer Official Discussion/@comment-5471249-20151020221715/@comment-44255256-20191027205917

I'd have to say Magnus. Like Lordinquistor40k said, Magnus is from the stranger mythology, and there are a lot of books about Greek mythology as well as it is taught in schools - most people know at least the basics, but ask the average person to name 3 Norse gods and they will be really confused. Annabeth saved the world twice, & has more books, but her companions are also less strange in the sense that they are all human and aside from their godly superpowers, do not do magic (referring to Hearth's rune thing) and none of them have friends who are bound to the service of a severed head, or were bound to the service of a severed head (Mimir, Sword of Summer). There's also that bit about Magnus being dead but not dead at the same time.