Penumbra Overture -

Once you have the paper, it will appear blank in your inventory until you expose it to .

Inside the office/storage room, there is a switch on the wall that turns on a purple UV light. Penumbra Overture

The secret text will reveal the storage password: 1371 . Once you have the paper, it will appear

Watch this walkthrough to see the exact location of the blank paper and how to reveal the hidden code under the UV light: Penumbra Overture | The Blank Paper | #10 MrNoDStudios YouTube• Apr 6, 2016 Key Items for This Section Watch this walkthrough to see the exact location

Essential for navigating the dark tunnels of Shaft 13. Notebook: Used to record the code once you've revealed it.

You must reach the office area by using a bolt cutter to release a minecart that breaks through a wall.

Detailed walkthroughs for these sections are available on GameFAQs and the Penumbra Wiki .