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Joel and Ellie finally reach the Firefly hospital in Salt Lake City . There, Marlene reveals that the surgery required to create a vaccine will be fatal for Ellie.
Refusing to lose another daughter, Joel launches a unilateral rescue mission through the hospital, killing Marlene and several Fireflies to save Ellie. 9. Look for the Light
Look for the Light: The Last of Us, Episode Nine - Black Gate Joel and Ellie finally reach the Firefly hospital