The Sinking City 2 Martin Safe is a locked box in Apartment 5 on Garrison Street. You will visit this location during the Reach the Miskatonic Library Annex objective. Let’s see what you must do to find the two clues and discover Martin’s Safe Code!
How to Open The Sinking City 2 Martin Safe in Apartment 5
To complete the puzzle and discover the Martin Safe code, you need to find two notes containing clues:
- To Martin.
- From A Sister.
Where to Find the Apartment 5 Safe Code Clues
The first clue, the note To Martin, is pinned on the safe. Read the note and learn that the safe code relates with Martin’s dad’s proudest moment.

Leave Apartment 5 and go through the first door on the left to reach the hallway. Turn right and enter Apartment 6. Destroy the broken barrels blocking your way and drop down through the hole in the floor. Interact with the fireplace and crouch to reach the other side. Go left and collect the note From A Sister.

The second note reveals that Martin’s dad’s proudest moment was the day he opened his shop 21 years ago. The current year is 1929. Subtracting 21 from 1929 results in 1908, meaning that The Sinking City 2 Martin Safe Code is 1908. Open the Investigation panel and connect the two notes. Interact with the furniture blocking the door and exit into the street. Re-enter the building and go back to Martin’s Safe in Apartment 5. Input the code 1908 to open the safe and loot the Handgun Ammo and Dolorocide Pills.
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