A prequel to the worldwide Maze Runner phenomenon, The Fever Code is the book that holds all the answers. How did Wicked find the Gladers? Who are Group B? And what side are Thomas and Teresa really on? Lies will be exposed. Secrets uncovered. Loyalties proven. You'll never see the truth coming... 12+ Dashner's trademark edge-of-your-seat action returns in an electrifying climax!