ALA Booklist
In this conclusion to the Under the Never Sky trilogy, Dwellers and Outsiders converge in the race to the Still Blue, the mythical pocket of calm beyond the Aether. The Tides have found shelter in a network of caves, but their safety is temporary. Soon, the Aether storms will trap them underground. Aria must corral Soren and the rescued Dwellers before they destroy the Tides' fragile trust. While Perry is more confident as Blood Lord, Roar returns from his mission cold and distant, with terrible news. Meanwhile, Hess and Sable, rival leaders, have forged an opportunistic partnership and possess everything needed to find the Still Blue: transport, coordinates, and Cinder, the boy who can channel the Aether. Confused? Better start from the beginning. Old hands will notice that narrators Perry and Aria have grown as leaders and lovers, and while their romance stays rock solid, the rest of the story remains suspenseful. After such a riotous buildup, the final battle is over too easily, but with several character deaths behind them, the survivors earn their happy ending. HIGH-DEMAND BACKSTORY: With twenty-some countries reading along and a film perhaps in the offing, the publisher's The End Is Here media campaign is out to drum up big-time awareness.
Horn Book
Aria and Perry (Through the Ever Night) negotiate the limited options to bring those under their leadership to the safety of the Aether-storm-free Still Blue. Perry's conflict over the fate of powerful Cinder and the necessities for the group's survival, as well as Aria's discovery of her father, keep relationships at the forefront of this trilogy-ender's high-stakes action.
School Library Journal
Gr 7 Up-This heartfelt, action-packed conclusion to the dystopian series begins where the second book Through the Ever Night (HarperCollins, 2013) ends. Liv is dead and Aria's recovering from a disabling gunshot wound. Roar and Perry blame each other for Liv's death and it's tearing them apart. The magnetic Aether storms are getting worse. Before it's too late, they must find the Still Blue, a paradise where they can live safe from the storms. Sable, the ruthless and cruel Horn tribe leader, kidnaps Cinder to use his ability to generate an Aether to destroy the Aether currents. Perry, Aria, and the others determine to rescue Cinder, knowing that a showdown between rival tribe leaders Sable and Hess, the cowardly Dweller leader, is inevitable. Perry and Aria are strong yet imperfect characters struggling to balance their love for each other with their responsibilities as tribe leaders. Some of the book's most interesting characters, such as Liv and Cinder, aren't fully developed and are, sadly, short-lived. The inclusion of the identity of Aria's father, while not essential to the story, is a nice surprise. The humorous quips made by Roar and the 6, so welcome in the series' previous books, are largely missing here. The fact that Perry, Aria, and company are repeatedly captured by Sable does become a bit repetitive. Still, the forthright and compelling plot has just enough of a twist to make this book, and the series, stand out from others like it. Fans will be desperate to find out how it all ends. Sharon Rawlins, New Jersey State Library, Trenton
Voice of Youth Advocates
Love, friendship, and leadership bring this trilogy to a grand finale. Aria, Perry, and Roar have a strong bond, but it is not without friction. This dynamic leadership team has the addition of Soren, who brings complexity and some stressful moments to the entire situation. Rossi has created a wonderfully sinister antagonist in the character Hess. The dynamic among him, Aria, and Perry creates wonderful tension and moves the plot along quickly.The conclusion to this trilogy is full of action, heartache, and plot twists making it an exciting book. While this is a good read, it would be helpful to read the other books first. The relationships among the characters and the fight for the Still Blue are complex and much of the needed background information will be found in the first two books. These books have something for everyone: both boys and girls will enjoy the fast pace and the intrigue. Given the depth of the story line, this is a series for readers of all genres, not just science fiction lovers. This would also be useful when teaching characterization, climax, and theme. Without a doubt, it should find its way onto the shelves of young adult collections.Lona Trulove.