Inside the chamber, they find a large portal between the living world and the afterlife; a gateway for Lucifer to return to a body. Needing both halves of the Stone to unlock it, Edward and Hermes reunite it on the pedestal only for the Light Bringer to begin repossessing Carnby. Sarah - unwilling to let Edward sacrifice himself - takes the Stone from him, allowing Lucifer to begin possessing her instead. The player is given a choice: to kill her and take the Light Bringer into his own body, or to let her live and allow the Devil to use her as his vessel. If he chooses the former, he becomes fully possessed by Lucifer and declares his intention to rule over humanity. If he chooses the latter, Sarah becomes possessed and the Devil mocks Edward for being so alone; to which he replies, ""I'm used to it,"" before walking away in defeat.