Bioshock Infinite: Burial at Sea – Episode 2 holds hidden secrets waiting to be discovered such as the coded messages. These are scattered throughout Rapture that are vital clues leading to an optional side-quest. These messages, left by Atlas’ followers, hold the key to uncovering Atlas’ hidden lair. By deciphering these messages, you’ll gain access to a unique adventure that sheds light on the events before the fall of Rapture.
This guide equips you to locate all four Coded Messages. With their insights, you’ll unlock a new layer of intrigue within the captivating world of Burial at Sea – Episode 2.
Coded Message #1
Location. The first of the coded messages in Burial At Sea Episode 2 is found inside the Bathysphere Services Bay. Head inside where you will see two mounted turrets. Get past them and look for the message sitting on a nearby table.
Coded Message #2
Location. Head inside a restaurant with a sign reading ‘Food’ on top of it. Go all the way to the back, and the code will be on a small desk.
Coded Message #3
Location. This message can also be found on the ground floor under Silverfin Restaurant with a ‘Medicine’ sign outside. Once you are inside, look for the message on a small desk.
Coded Message #4
Location. After you have talked to Atlas about the Old Man Winter Plasmid Store, head over to the Test Drive and enter the Old Man Winter Plasmid Store to find the last message on a table.
How to Unlock the Secret Lair?
Once you have collected all Coded Messages in Burial At Sea Episode 2, head over to Manta Ray Lounge. Go all the way to the back-left side of the area to reach the Executive Suites. Once inside, you open the left door and find your way to the stairs near the large aquarium. Take down the enemy in front of you and interact with the three wine bottles to unlock the lair.