After finishing Total Eclipse, I decided it was time for me to revisit Outcast Season and actually finish it up. Unbroken is the last book in this series, and there is some overlap with the last book or two of Weather Wardens. 
 I really liked seeing some of those events from Cassiel's perspective, especially as she's a former Dijinn. It was also nice to see some of the characters through Cassiel's eyes. 
 There is a lot going on in Unbroken, and it was so hard to put down that I finished it in day! I liked seeing Cassiel's journey, and how becoming human helped her realize what she needed to do in order to save humanity. Also: she's pretty much on her own, with only Luis, Esmeralda and Ibby for a good chunk of the book. She has to draw on Luis' abilities as a Earth/Fire Warden, and Ibby using her own abilities...poor Ibby! She started off the series as such a happy child, and now, she's pretty broken and scarred from everything that's happened. She did have an interesting friendship with Esmeralda, and I really liked seeing their relationship in this book. Also: I like that there's such a contrast in how Ibby acts. Sometimes, she's still a 6-year-old-girl, other times, she acts much older. It's definitely interesting to see how there are all of these different things going on in Ibby's head because of what Pearl did. 
 Speaking of Pearl: I totally loved that Pearl has her own thing and she has this whole plan to become the new Mother Earth. and I really liked how that lined up with the events of Weather Wardens. It's definitely not necessary to read Weather Wardens first, because Outcast Season has it's own storyline that also happens to be going on at the same time as Weather Wardens. I will say that reading WW first helped, in terms of timeline and the parallels of Pearl and the whole thing with Bad Bob and Mother Earth waking up. 
 Unbroken is everything I could have wanted in the last book for the series, and Caine did such a great job with wrapping things up. You definitely see the damage that's been done, and there are a lot of people who didn't make it through the craziness that is Weather Wardens and Outcast Season. Unbroken really ties the two series together, and the great thing about Unbroken is that you do see what's going on. While Weather Wardens focuses on Joanne, and her fight to save the world, you also don't see what's going on all over the place. Which is why Unbroken is so great- because you actually see some of the craziness and destruction, instead of just hearing about it. 
 It was a little weird reading Unbroken, knowing how things ended, and even seeing a glimpse of the future. But there's something about Cassiel's journey and wanting to know how things turned out for her. While we don't get an epilogue for her story, I still think the ending was a wonderful one for Cassiel. 
 Part of me also wants to know what happens with all of the kidnapped Warden children, and if they turn out okay. Should Caine ever decide to revisit this world, I think she has a really interesting story with the Warden kids. 
 Final Thoughts: I feel like I haven't talked about Unbroken except in regards to the rest of the series and how it related to Caine's Weather Warden series, but for me, it's hard separating the two. But I loved Unbroken, and I loved seeing how much the characters changed, and how you don't need special abilities in this world to make a difference. Unbroken gets 5 stars.