*Spoiler* Metro Last Light. Help

[BeastlyHex]

Ok I Completed Metro Last Light. Yesterday And I Got The Ender Where You Save The Dark Ones. But There Is Another Ending And Im Wondering How To Get It.


Please Without Spoiling The Second End What do i have to do to achieve it?

[LB]

http://www.downforeveryoneorjustme.com/google.com

[BeastlyHex]

Google With Have Spoilers Though.