In the After by Demitria Lunetta (review)

In the three years since vicious man-eating aliens attacked Earth, teenaged Amy has been able to survive thanks to her house's secure electric fencing and rainwater plumbing. Her parents are missing, likely dead, but Amy finds company in Baby, a toddler she rescues on one of her many scavenging trips into the city. When a violent mob of survivors attack their house, Amy and Baby leave their refuge and eventually make their way to New Hope, a survivor community that at first seems idyllic—until Amy starts asking the wrong questions and ends up angering the compound's leaders. Much like Bick's Ashes (BCCB 10/11), this post-apocalyptic tale follows its female protagonist from the pulse-pounding, visceral thrills of surviving monsters to the less active, but no less frightening challenge of living in a society that has traded freedom for safety and order. The pacing is near perfect, with breathtaking chase scenes and encounters with Them balanced against quiet, subdued moments as Amy reflects on all she has lost and attempts to figure out if she has anything to live for. The dual narrative structure of the second of the book's three parts is perhaps most compelling: Amy's narration switches back and forth between her attempts to fit in at New Hope and her experiences in a psych ward, and readers are suddenly unsure of what, if anything, is real about her story. The revelation of secrets is organic enough to make it seem more essential and less gimmicky, particularly as it becomes clear that They are not the only evil Amy has to contend with. Just when readers thought they've seen every which way the world could end, Lunetta breathes new life into the genre.