Attack On Titan Before The Fall Novel

"In this post-apocalyptic sci-fi story, humanity has been devastated by the bizarre, giant humanoids known as the Titans. Little is known about where the came from or why they are bent on consuming mankind. To combat these monsters, mankind has developed a new set of tools to grant them the skills of flight, speed, and agility. Before the Fall details the development of those tools. This young adult fantasy title based on the best-selling manga Attack on Titan takes places a generation before the main series."