Cthulhu Casebook
Cthulhu Casebook — a Great Old One in the mythos index; cult traces and dream contagion documented under Miskatonic seal. Register ME-1920-R80/1319.
Overview
Miskatonic seal ME-1920-R80/1319 binds this packet; duplicate citations must use slug `cthulhu-casebook`.
The dossier for Cthulhu Casebook opens with a warning we did not write for ornament: several observers who sought direct contact ceased to file reports in languages the University recognises.
Dream contagion and tidal anomalies cluster around the name Cthulhu Casebook even when no temple is found.
Period attestation: expanded-mythos.
What sleeps is not dead; what is catalogued here may be doing neither.
Description
The archive treats Cthulhu Casebook as active-in-waiting: not dead, not awake on a human schedule.
Post-1937 pastiche and game supplements multiplied references to Cthulhu Casebook; tag layers as expanded mythos unless a primary witness is cited.
Olfactory notes in depositions: salt, copper, wet stone, and organic sweetness like fruit fermenting in a closed room.
Historical Record
Cthulhu Casebook appears in post-1928 mythos tables as a regional or oceanic power with cult traces on multiple continents.
Cross-links at dossier foot are hypotheses — cite slug `cthulhu-casebook` in all field reports.
Cross-links at dossier foot should be treated as hypotheses, not as family trees carved in stone.
Field Observations
Do not engage alone; do not accept hospitality from hosts who show windows to other eras.
Submit Form Theta-9 if conversation turns to cities remembered only in sleep.
Cross-reference before fieldwork; cite slug in all reports; do not bring back souvenirs that pulse.
Archive Notes
Cite archive slug `cthulhu-casebook` in all cross-references. Cross-reference before fieldwork; cite slug in all reports; do not bring back souvenirs that pulse.
Citation: Miskatonic Expedition Archive. Record ARC-000. Access subject to institutional review.
Related Records
Cross-References
CON-001
activeCosmic Horror
Philosophical Classification
Horror arising not from personal evil but from the insignificance of humanity before an indifferent, incomprehensible cosmos - the aesthetic that governs every file in this archive.
TOM-001
fragmentaryNecronomicon
Al Azif, Book of Dead Names
The most infamous grimoire of the mythos, an Arabic manuscript of rituals, histories, and formulae that erode the sanity of readers and have never been wholly suppressed, only scattered.
CON-002
activeForbidden Knowledge
Epistemic Hazard
Information whose acquisition damages the seeker - truths the mind evolved specifically not to accommodate, and that no degree of education prepares one to survive.
GOO-001
dormantCthulhu
High Priest of the Great Old Ones
A colossal entity of draconic and cephalopodic aspect, dreaming in death-like slumber beneath the Pacific until the stars align, and when they do, the world will know madness again.
CIV-001
dormantR'lyeh
The Sunken Corpse-City
A cyclopean metropolis of non-Euclidean geometry risen briefly from the Pacific, tomb and temple to the dreaming god, a city that should not exist and cannot be forgotten once seen.