Question: does teresa die in the death cure book

Answer: Yes, In the note, Paige reveals the location of the Immunes whom the Right Arm ``sold'' to gain access to WICKED, and gives directions to a ``safe place'' where Thomas should take them all. Thomas and his friends re-enter the Maze and find the captured Immunes. However, they learn the Right Arm does not intend to occupy WICKED headquarters but instead intend to destroy it. Explosions rock the Maze and falling debris kills some of the Immunes inside. Triggered by the commotion, the Grievers come out of storage, but Teresa shows Thomas how to shut them down. She, however, dies from falling debris in an effort to save Thomas's life. Fleeing the building, the Immunes escape through a Flat Trans portal that leads to a lush paradise.