This is the best teen dystopian since The Hunger Games. That almost sounds cliche at this point, since every dystopian released in the last three years has that slogan pasted on the cover. Under the Never Sky actually lives up to it. 
 The world is all too plausible. Strange electrical storms plague the planet, destroying forests, homes, and anything else in its path. A part of society took refuge in domes that protect them from the violent climate. But some people remained outside, reverting to a more primal culture to stay alive. This world is basically a blend of The Inferior and Pure in setup. The cultures, especially of the "Outsiders," are very different, however. 
 With alternating points of view between Aria, who grew up in the dome, and Perry, who grew up in a village some miles away, we get a rich view of the world much like in Pure. Perhaps Rossi's most clever creations are the mutations present in the Outsider population. Exposure to the "Aether," the electrical currents that run through the sky, has caused genetic mutations over the generations. Many of the people in Perry's culture have enhanced senses: sight, smell, hearing. This adds another dimension to her storytelling, and some interesting point-of-view tricks when Perry is narrating. 
 The two main characters are both remarkable and believable. Aria bears some resemblance to Katniss - not your typical heroine, but a girl who can rise to a challenge when faced with one. She is a bit more intelligent and thoughtful though, never jumping until she looks down. Her counterpart Perry is a stirring male narrator, and a fascinating character. His loyalties are conflicted, giving him a bit of a brooding nature without overplaying it. The evolution of their relationship, though you pretty much know how it will go from page one, manages to be organic and believable as the plot progresses. 
 Secondary characters like Roar and Cinder give us both perspective on the world they're traveling through and, in Roar's case, some really great comic relief. In this way it's very different from Pure, which is almost all darkness. There's a good bit of light and hope here as well. 
 Any dystopian or romance fan will love this book. It's fast-paced enough for teen readers, but substantive enough for adults. Highly, highly recommended! 
 ~ Word of warning that there is some discussion of sex in this story, though nothing graphic and with a very mature, reasoned attitude. ~