I was rather disappointed with this sequel because I didn't find it as exciting an action packed as Angelfall. This may have something to do with Raffe and Penryn not being very exciting apart from each other, because for the first half of the book, I struggled to stay interested. On the positive side, the second half does pick up after Penryn and Raffe reunites and the horror aspect that we saw at the end of Angelfall really starts to shine through. I'm curious to see where this series is going, because a large part of World After was about Penryn -- once again -- going off into danger to save her sister, who seems to now have a larger role in this whole Angel Apocalypse thing. I really hope books 3-6 don't follow similar plots. There are only so many times Penryn can save Paige before it loses its appeal. 
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 So I read on Susan's blog that there will be 5 books total!! 
 OMG! I CAN'T WAIT! 
 But I don't know how I'll be able to wait so long. *sigh*