Barnes & NobleIsland of Shipwrecks Unwanteds Series 5 by Lisa McMann

A risky decision endangers both Artime and Quill in book five of the New York Times bestselling Unwanted series, which Kirkus Reviews called "The Hunger Games meets Harry Potter". Alex and his friends from Artime are stranded on a newly discovered island after barely surviving a storm that destroys their ship. And it turns out they're not alone… Back in Quill, Aaron's power base grows as he aligns himself with an unlikely ally. Together, the two enact a drastic, risky plan to finally conquer Artime-a plan that could ultimately leave everyone in both Artime and Quill in far more danger than Aaron realizes.