The Kill Order (Hardcover)

From the Publisher: Before WICKED was formed, before the Glade was built, before Thomas entered the Maze, sun flares seared the earth and mankind fell to disease. The Kill Order is the story of that fall. A prequel  to The Maze Runner trilogy, The Kill Order has been in the works since the completion of The Maze Runner. The  story of civilization's fall was kept under wraps and is the explication of the events that began this bestselling series. From the Hardcover edition.