Thomas stabs himself with the severed stinger he found and remembers that he and Teresa belonged to an organization that created the Maze ; the boys have unknowingly taken part in an experiment .
Thomas stabs himself with the severed stinger of a griever he found in an attempt to regain his some memories and passes out . 
 He remembers that he and Teresa belonged to an organization that created the Maze ; the boys have unknowingly taken part in an experiment .