I have very few bad things to say about the conclusion to this epic Flintlock Fantasy. There's tons of action, tons of characters to develop and enjoy, and plenty of interesting reveals. 
 Specifically, however, is how much I've been enjoying Bo and Nila. Don't get me wrong, I'm head over heels for Taniel's storyline and enjoyed it from start to finish, but Bo's understatements and Nila's growing power from a washerwoman into a firestorm was easily my favorite bit. 
 The Adamant storyline felt like a bit of a letdown, honestly, after all the mystery in the first two books, but that's okay when I consider that all the main players finally converge and either work together or are at least working toward the same somethings in this book. The reveals about the gods were a plain delight for me, as good as in the first book as in the third. 
 The fact that all these poor mortals have to deal with them or kick their butts or, now, need to deal without their cooking, is probably the best thing to happen to these folks. I'm sure some would disagree with me, but having these immortals around is definitely a bad thing, not that they're inherently evil... they're simply too much like us. :) 
 As for the ending, I may have enjoyed it a bit too much, wanting to see the wrap up very dearly. I'm not saying I didn't enjoy the books, but there were some parts that did go on too long and it's a very specific complaint of my own. A lot of people like the drawn-out war stuff. I generally don't. Fortunately, McClellan's a good writer and makes everything pretty exciting and obviously very clear. Flintlock Fantasy is a very fun genre. :)