I played through the library DLC in last light and this was the last thing that happened to me in the DLC before I was able to leave the library. : r/ metro
Metro: Last Light - Wikipedia
Metro: Last Light - Faction Pack DLC Walkthrough - Heavy Squad - YouTube
SPIDERS EVERYWHERE: Metro's Developer Pack DLC | Rock Paper Shotgun
RUMOR: Metro Redux (Metro 2033+Metro Last Light+DLC) Coming to PS4/XB1/PC | NeoGAF
Metro: Last Light DLC guide | PCGamesN
Limited Edition METRO: Last Light PC DVD-Rom with DLC Rated M 2013 NIP rare | eBay