I just finished reading the whole Abby Sinclair set back to back (I'd read and loved the first in an advance copy before its publication), and I'm already feeling somewhat bereft at its conclusion. Pang does a marvelous job creating characters that are, for all their otherworldly abilities and worldviews, fundamentally and humanly flawed. They don't always get things right, they often have to backtrack to figure out how to solve those mistakes, and they love with abandon, even when jumping in head first is dangerous. All this, set against a world that is at once full of magic and grounded in mundane concerns (eg. one character leaves for college, despite the magical catastrophes happening in her hometown; there's a discussion of creating paperwork for an OtherFolk who has become mortal so he can get a job). 
 One of the ways that the series best reflects the real world, however, is that when the book ends, not everything is resolved. Yes, the characters have saved the world from disaster -- and with stakes that high, the third book seems like a series ender -- but life goes on its messy way, and some of the personal aspects are left hanging. A conclusion like this might not be completely satisfying -- and perhaps there is a window left open for future stories -- but there's a rightness to it that fits incredibly well with Pang's world. Life is messy, and there are rarely easy answers. I'm glad that the finale stuck to that worldview! (And I'm excited to keep reading Pang's projects, whether in Abby Sinclair's universe or elsewhere.)