The plot in this trilogy sorta escapes me, coming back to write about it six months or so after reading. But the imagery... ah, that stays. The three Londons is very compelling indeed, and the distinctions between them is something I grasped so intuitively that I halfway wonder if it's not real, because it just seems so obvious. Storytelling skill by Schwab there, I feel. And it's nice to see urban fantasy with the real world in it (well, sorta) but not set in a 2000s-era American city.