I feel pretty lucky that I got to read an early version of this. After everything that happened in book 2, waiting for this was TORTURE! And it didn't disappoint.
This is the book where we get to see Daria become the strong, brave, wonderful heroine we've been rooting for ever since she set foot in Gaia. Sure, she still can't really do magic, but does that stop her from, well, anything? It creates a very fulfilling struggle. She's clever and good at improvising, and I love watching her wriggle herself, Alex, and Vera out of tight spots. And Alex… *swoons* Okay so he's always been sexy, but the tension in this book between them is perfect. I mean, they're traveling cross country together, facing countless dangers… It's a good thing Vera's there, or I'm pretty sure that whole quest thing never would've reached completion :-) And honestly, I really enjoyed getting to know Vera more, watching her frienemyship (yes, that's a word now, deal with it) with Daria blossom. A lot of what's going on around the characters is doom and gloom, so having some normal teenage drama added a lot of levity, and humor at times.
I don't want to give anything away, but there is SO MUCH about this book that is so cool and unexpected, new powers for Daria, new understandings of the world and its rich history. It reminds me of Juliet Marillier's Shadowfell series in some ways - unraveling discovery of powers, awesome world building, perfectly flawed characters, strained and uncertain friendships (and romances).
I guess, all I would say is that you want to read this. If you haven't read the first two, go back and do that first, but then READ THIS! And I can't wait for book 4!!!