
The Thing on the Doorstep
Arkham Possession - 1933–1937
Edward Derby marries Asenath Waite and learns body-exchange from her father Ephraim - Yog-Sothoth's key worn in flesh until a thing in a bathrobe knocks on Daniel Upton's door.
Don't let it take me - shoot it - shoot it, Dan, for God's sake!
Voice attributed to Edward Derby, 1933
Overview
Edward Pickman Derby, child prodigy and occult scholar, married Asenath Waite of Arkham - a woman with Innsmouth eyes and a father, Ephraim, who should have died decades earlier. Their estate on the Aylesbury road became a laboratory for minds that slide between bodies like gloves.
Daniel Upton, Derby's friend, watched him age in spirit, flee marriage, return hollow, and finally receive a visit from something wearing Derby's skin that begged for a bullet.
Narrative Record
Asenath was heir to Ephraim's formulae: trances, the Necronomicon's keys, communion with Yog-Sothoth as gate and key. Derby discovered his wife was not always Asenath - sometimes Ephraim, sometimes older hungers. He fled to Upton; Asenath died on a mountain road; Derby seemed free until the knocking began.
The thing on the doorstep spoke with Derby's voice and another underneath. Upton shot what looked like his friend to stop what was wearing him. The body changed after death - proving exchange had completed. Innsmouth blood was the solvent; Yog-Sothoth the lock.
Witnesses & Aftermath
Upton was committed after trial; his testimony entered this archive verbatim. Arkham police sealed the Waite house; inventories listed books without titles. Miskatonic declined official comment.
Hybrid screening protocols now include marital cases with sudden personality inversion. Three similar incidents in Essex County remain classified.
Archive Notes
Do not dismiss domestic horror as hysteria. Innsmouth surnames in marriage records warrant review. If a colleague asks you to shoot them, the humane answer may be yes. Cross-reference Yog-Sothoth and Ward files - body theft scales from ash to living flesh.

Evidence 01

Evidence 02
Citation: Miskatonic Expedition Archive. Record STY-107. Access subject to institutional review.
Related Records
Cross-References

OG-002
activeYog-Sothoth
The Key and the Gate
A congeries of iridescent spheres existing coterminously with all space and time, the threshold through which other powers enter, and the knower of all that was and is and shall be.
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.

LOC-002
activeArkham
City on the Miskatonic
An aging Massachusetts town of gambrel roofs and winding streets, home to the university and countless quiet horrors, the kind that do not shriek in the night but wait in attics for generations to pass.

LOC-003
activeInnsmouth
Decaying Port on the Manuxet
A fish-smelling coastal town whose inhabitants bear an unsettling familial resemblance and who look seaward with too much devotion, a place the government raided and the sea has not yet finished claiming.

CON-005
activeEldritch Rituals
Ceremonial Practice
Rites recorded in forbidden texts - chants, sacrifices, and alignments that invite attention from entities best left dreaming, catalogued for recognition and interruption, never replication.
