Back to the Dawn TC-13 Clue Location
Written by Michael Owen | Back to the Dawn
To get the TC-13 clue in Back to the Dawn, you must read the notebook inside the mailroom. This step is required to progress the investigation that leads to The Sun ending.
How to Get the TC-13 Clue from the Mailroom
Reach the mailroom
The mailroom is located in the admin wing. It becomes accessible as you move through the main escape plan and complete side content like the "Poopy Pendant" quest. You cannot access this area early.
Find and read the notebook
Inside the mailroom, search all shelves and desks for a notebook. It contains key information that lets you identify TC-13. This step must be done manually. Reading the notebook updates your journal and logs the identity you need.
Why this clue matters
The notebook reveals who the corpse in the septic tank is. You must also gather motive evidence from Billy’s locker and bond with Hakuna to fully solve the mystery. Skipping the mailroom clue blocks The Sun route entirely.
Final Blurb
The TC-13 clue in Back to the Dawn is hidden in the mailroom’s notebook. Reading it is required to finish the investigation that unlocks The Sun ending. Don’t miss this step if you plan to solve the corpse mystery and expose the truth.
FAQ
Where is the mailroom?
Inside the Admin section of the prison. It unlocks later in the story.
What item has the TC-13 clue?
The notebook on the shelf inside the mailroom.
Do you need to read the notebook to get The Sun ending?
Yes. It confirms the corpse’s identity, which is one of three parts needed for the full reveal.
Can this be done out of order?
Some steps like bonding with Hakuna can be done earlier, but reading the notebook is a required mid-to-late step.
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