Mixing worlds

Right now I'm working through Paladin of Souls, by Lois McMaster Bujold (of Miles Vorkosigan fame). It's reasonable, with only one problem: it's clearly a sequel to The Curse of Chalion, and it's been a while since I've read that. In between I've read Trudi Canavan's Black Magician trilogy, and Sean McMullen's Moonworlds, uh, bilogy (odd in that Voyage of the Shadowmoon is "Book One of the Moonworlds Saga", Glass Dragons is "A Tale of the Moonworlds Saga"). So now I'm mixing events between worlds, and trying to remember that mages don't need to be registered with the guild and that nobody's trying to build a magical wall that circles the world...