When we combine the Yellow Sign as an investigative condition with Carcosa as a shifting interpretive frame (rather than a final location), what concrete table tools—like dual-case files, NPC “version of events” sheets, or visible vs. distorted logs—help players track multiple competing realities without collapsing into either (a) pure epistemic fog where no conclusion feels stable or (b) a single obvious ‘true Carcosa’ that makes the other frames feel like wasted noise?

king-in-yellow-rpg | Updated at

Answer

Use simple, paired props that always anchor at least one stable layer while hinting at others.

  1. Core pattern
  • Always have: one “baseline” record, one “Carcosan-tinged” record.
  • Baseline is never erased; Carcosan versions add, distort, or reinterpret.
  • Players can always compare the two.
  1. Concrete tools

  • Dual case files

    • For major incidents, keep two folders: "Police File" and "Yellow File".
    • Police File: mundane facts only (dates, bodies, money, CCTV).
    • Yellow File: same events, but with added symbols, quotes from the play, altered photos.
    • Rule: if details contradict, the Police File is what happened; the Yellow File is what it means in a Carcosa frame.

  • NPC reality sheets

    • One index card per key NPC with 2–3 columns: "What they say happened", "What records show", "Carcosa talk" (their art, diagnoses, visions).
    • Players see all three; NPCs only embody one.

  • Clean vs. tainted logs

    • Party keeps a shared “clean log” (facts only) and lets any Yellow-Sign-marked PC keep a “tainted log” (visions, symbols, dreams).
    • At the table: two notebooks or two sections on a shared doc.
    • Regular comparison scenes (“recap nights”) become built-in Carcosa moments.

  • Mode tags on handouts

    • Small icon or color to mark each handout as:
      • □ Casework (mundane)
      • □ Frame (interpretive Carcosa)
      • □ Incursion (full-on weird)
    • Lets players sort clues by layer without revealing which is “true.”

  • Forked scenes summaries

    • After big scenes, GM writes 2–3 one-line summaries from different frames (e.g., "Clinic notes", "Gossip blog", "Cult diary").
    • Hand them out later as recap; they show how the same event has been reclassified as Carcosa by others.
  1. Keeping fog vs. single-truth in balance

  • Anti–pure fog rules

    • At least one clue chain per mystery is solvable using only mundane-mode handouts.
    • Carcosa layers add risk, shortcuts, or extra questions, not the only answers.

  • Anti–single-true-Carcosa rules

    • Never have only one Carcosa frame in play; aim for 2–3 (medical, artistic, occult, political).
    • Each frame gets:
      • 1–2 distinct handouts.
      • 1–2 NPCs who push it.
      • 1 mechanical hook (who believes you, what doors open, what SAN risk).
  1. Light mechanics to support this

  • Yellow Sign condition effect

    • Marked PCs can always request to see or create the Carcosa-tinged version of any record (dream replay, altered photo, marginalia), but risk SAN / condition ticks.
    • Unmarked PCs read and maintain the baseline.

  • Compare-to-stabilize move

    • When players explicitly compare baseline vs. Carcosa versions, let them:
      • Lock in 1–2 facts as “table truth” (cannot later be retconned by more weirdness).
      • Or choose to privilege a Carcosa frame for a bonus and extra risk.
  1. Safety
  • Keep all “reality erosion” in-fiction: never use real player data in tainted logs.
  • Use debriefs to confirm which facts the group wants fixed vs. still ambiguous.

Result: players handle multiple realities as parallel files and voices they can cross-check, instead of either drowning in fog or being told which single Carcosa was right.