Let me just start off by saying that this series trilogy has been one of my favorites to read. I was sad to see this story come to an end when I thought it was going to be 5 books instead of 3, but I thought it was a fitting ending for Penryn, Paige, Raffe, and everyone in the End of Days. 
 This book does not disappoint, Susan Ee manages to step it up a notch and she goes out with a bang. End of Days is full new monsters, new insight into the Watchers and the angels, and my favorite part: we get more Raffryn! Now, there's a lot of angst going on between them, (view spoiler)[or maybe it was just me because I wanted them to admit it already! (hide spoiler)] and there's little bit of romance too, but it still didn't take away from the story. This time around, we get even more of the angels and Uriel's plan, plus what's really happening with the "apocalypse" that Uriel brought down. (view spoiler)[he does it just so he could get rid of Archangel Gabriel in order for him to vie for the Messenger position just so he could basically do whatever he wanted and have that kind of power. (hide spoiler)] Raffe and Penryn get more scenes together, we get to meet the Watchers- Raffe's soldiers- and of course we get the big epic fight of humans vs. the angels (and locusts, hellions, sixers, scorpions, etc.) 
 And I would love to add more, but I'm afraid that I might end up spoiling the whole book instead, so I'm going to stop here and just say a huge thank you to Susan Ee for bringing to life such wonderful characters and an interesting world, and thanks for the amazing journey you took us through. Penryn & the End of Days is going down as one of my favorites forever. 
 P.S. I'm literally at a loss for words to describe how awesome this book was. I literally loved it and I'm glad for the happy ending, I mean sure the humans are still having to regroup and get through the world having ended, but at least Penryn and Raffe love each other and they got their happy ending. oops, spoiler! 
 P.P.S I will update my review once I can formulate a decent review for End of Days!