Oh dear.

There was really no way to do this but bluntly, was there. And to a sick ma- god, no less.

"I think, Loki," Aziraphale began, "that perhaps Uriel may have left. For good, as it were. With Bran," he added. "It's probably all for the best but I don't think that she told anyone before going, particularly seeing as she hadn't told you. I owe her a favour, you see, but I haven't been able to fulfill it. I'm sorry."