Thomas can not trust CRUEL. The organization erased his memories and locked him in the Labyrinth. Then he left him on the verge of death, in the desert. And they separated him from the inhabitants, his only friends. Now CRUEL assures that the time of the lies is over. With all the information that he gathered thanks to the Tests, he is in a position to advance in the healing of the Flame. But Thomas must go through the Final Test. Will he survive the procedure? Is it true that the lies are finished? Perhaps the truth is even more terrible … a lethal solution, with no return. The deadly cure? is based on the third part of the literary saga started with ?