Pearl and Brenda remain POV characters, but we lose Honey Dream which makes sense as she is now definitely on the same side as the Orphans and is generally in the same physical location as Pearl. Once the gates are opened they discover that all is not as expected in the Lands, and so a group of scouts are chosen to go through and figure out what exactly is going on. It is now September, and real life goes on even though exciting things are still happening, so Brenda winds up back at school which leads to some interesting exploration of the other side of her heritage. I was expecting a giant conflict to come of this, especially because it is hinted at all throughout the first book, and practically set up in the second book, but instead of conflict there is cooperation. The conflict arises from an entirely unexpected quarter and focuses around Pearl Bright.
The ending to this story is good and wraps up the trilogy nicely. There are still a ton of open questions, but I think that will always be the case at the end of a good fantasy story. The ending to the story occurs once most of the major questions regarding the folks from our world have been answered, but before everyone has gone back to life as usual. This was pretty satisfying as I could imagine several different ways in which things play out once people try to get on with their lives, and there are tons of possibilities open for everyone. I'm really hoping this isn't the end though. I'm still really wrapped up in the characters. I want to know what happens in the Lands next, I want to know how things with Flying Claw turn out, I want to know what Brenda chooses to do next, I want to watch Lani grow up, I want to see whether the relationship between the Orphans and the other indigenous magical traditions changes now that they are no longer Orphaned.
So, Jane Lindskold, here's hoping that you decide to write another trilogy in this world!