Book 8.5 of the New York Times and USA TODAY bestselling Guardians of the Lost Cities series delivers what fans of the series have been asking for! Told in exciting new ways, the saga continues with plenty of huge revelations and shocking new twists - plus a complete guide to the series with beautiful color and black-and-white illustrations and other stunning bonuses! In this extra special entry in the Guardians of the Lost Cities series, the story picks up right with the particularly devastating, breathtaking “Inheritance.” But the chapters alternate between Sophie's and Keefe's perspectives to give readers a deeper understanding of both beloved characters. New forces will be discovered. Harsh truths from the past will come to light. And all your favorite characters will be tested in ways they never imagined. And that's not all! Unlocked also includes a complete guide to the world of the Lost Cities, new character and world details that have never been revealed before, plus fun bonuses like Recipes, a detailed map of the Lost Cities, stunning full-color illustrations, and more!