Skip to content
[Investigation scene, Deal with the Devil] (3)
The Sinking City 2

[Investigation scene, Deal with the Devil] (3)

Follow our complete walkthrough for The Sinking City 2's 'Deal with the Devil' investigation, including all clues, deductions, and the missable 'What Could Go Wrong?' achievement.

By ···10 min read·Multi-source verified
1 reading this guide  

Follow our complete walkthrough for The Sinking City 2's 'Deal with the Devil' investigation, including all clues, deductions, and the missable 'What Could Go Wrong?' achievement.

Walkthrough
  1. 1
    Proceed farther into the factory. Speak with the Yellow Kings member. You will receive the 'Yellow Kings member statement' (Key Evidence 1/5) and the Mind Palace clue 'The Chosen go mad'.
  2. 2
    In the Mind Palace, combine 'I was woken by a nightmare' and 'The Chosen go mad' to deduce 'The Seed will drive me mad'.
  3. 3
    Go upstairs and interact with the plate of tentacles on a banquet table to find 'Spoiled banquet' (Evidence 1/4).
  4. 4
    Interact with the lectern marked with the Eye of Dagon to find 'EOD lectern' (Evidence 2/4).
  5. 5
    Interact with the letter on the large occult book on the desk to find 'To E. Blackwood' (Evidence 3/4).
  6. 6
    Use Mind's Eye on the desk to dispel the illusionary books and interact with the key to obtain the 'Factory key' (Key Evidence 2/5).
  7. 7
    Approach the map on the wall and use Mind's Eye to concentrate on the vision of the past. You will receive the Mind Palace clue 'Monitoring the Chosen' and find 'Map vision' (Evidence 4/4).
  8. 8
    In the Mind Palace, combine 'Ebernote's ritual' and 'Monitoring the Chosen' to deduce 'Ebernote fights the curse' and 'Ebernote can help lift my curse'.
  9. 9
    In the Mind Palace, combine 'Ebernote was thought to be Chosen' and 'Monitoring the Chosen' to deduce 'Dangerous obsession' and 'There is no escaping my curse'.
  10. 10
    Head to the basement and use the factory key to open the door. Interact with the bloody page by the Seal on the pedestal to find 'Ancient prophecy' (Key Evidence 3/5).
  11. 11
    Interact with the Seal on the pedestal to obtain 'The Seal of Cthygonnaar' (Key Evidence 4/5).
  12. 12
    Go back upstairs and speak with Ebernote Blackwood. Choose to accept his offer ('Might be my last chance. I'm in.') to progress towards the 'What Could Go Wrong?' achievement. You will receive 'I agreed to the ritual' (Casebook). If you refuse, you will have to kill Ebernote.
  13. 13
    Return to the basement and interact with the altar. After the scene, the 'The Seal of Cthygonnaar' casebook entry will be removed.
  14. 14
    Interact with the Seal on the altar to obtain 'I have the Seal' (Casebook), 'The Seal of Cthygonnaar' (Casebook), and 'Van der Berg's address' (Key Evidence 5/5).
Tips
  • Accepting Ebernote's offer is the only way to achieve the 'What Could Go Wrong?' achievement/trophy. Refusing will lead to a fight with Ebernote.
  • Key Evidence: Yellow Kings member statement, Factory key, Ancient prophecy, The Seal of Cthygonnaar, Van der Berg's address.
  • Evidence: Spoiled banquet, EOD lectern, To E. Blackwood, Map vision.
  • Deductions: The Seed will drive me mad, Ebernote fights the curse, Dangerous obsession, There is no escaping my curse, Ebernote can help lift my curse.
  • Casebook: I agreed to the ritual, I have the Seal, Ritual went wrong.
  • Achievement/Trophy: What Could Go Wrong? (missable)

100% Human-Written. AI Fact-Checked. Community Verified. Learn how AntMag verifies content