The Mermaid Mask Wiki

Last updated: July 2026

How to Investigate Suspects

Investigate suspects in The Mermaid Mask using the suspicion button, evidence presentation UI, Opportunity/Motive/Means tracks, and interview best practices.

Mid-game, The Mermaid Mask unlocks formal suspect investigation via notebook suspicion tab—accessed by suspicion button icon or Tab cycle. Here Grimoire presents inventory evidence to eight voiced suspects, filling Opportunity, Motive, and Means meters tracked on Suspicion Tracker. System avoids binary guilt flags until finale; instead it documents contradictions supporting Illusion Theatre reconstruction.

Evidence Presentation Flow

Select suspect portrait → choose dialogue topic → drag evidence from tray onto highlighted drop zone. Valid pairings advance suspicion bars and unlock follow-up questions; invalid pairings produce Spears warning without penalty. Some evidence works on multiple suspects sequentially—notebook marks consumed versus reusable status. Tier-gated topics require minimum bar fill before appearing.

Suspicion Button and Finale

Suspicion button pulses when new cross-suspect contradiction detected—often after puzzles like compass pinboard or interviews elsewhere. Finale reconstruction requires minimum global progress; premature accusation UI stays locked with Grimoire monologue. Follow crew interviews walkthrough for order; consult individual suspect pages for evidence pairing cheat sheets without spoilers.

  • Open suspicion tab after Act Two milestone cutscene.
  • Drag evidence only onto highlighted topic zones.
  • Watch Opportunity/Motive/Means separately—high Means ≠ killer alone.
  • Suspicion button pulse indicates new actionable contradiction.
  • Use tracker wiki tool to plan remaining presentations.

Frequently Asked Questions

When does suspicion tab unlock?
After Illusion Theatre baseline inspection and Parlor intro completion—~3-4 hours in.
Can I present same clue twice?
Some clues reusable across suspects; notebook icons show spent status.
Wrong accusation game over?
Finale accusation validates logic chain—premature guesses blocked earlier.
Multiplayer interview help?
Single-player only—local co-pilot socially ok but one save profile.

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