The Black Book

In his search for ultimate knowledge did not the sorcerer Tellaborabi sign his name in the Black Book of Azathoth? And later, when his frightened acolytes broke down the door to his sanctum they found not an all knowing sage but instead a drooling madman who had clawed out his own eyes.

(from the confessions of Psylacheus the Heretic)

Revenant from the Bog

Those sorcerers of old Hyperborea would cast the bones of a man into a swamp and command elementals to inhabit them. In time those bones would rise covered in the substance of the bog, a shape vaguely like a man but a thing of horror and an affront to the spirits of the earth .
(from the Scrolls of Vecra Tutthoon)

The Scrolls of Druuna Cosaan

"And the great King Khossus looked into the glass from Leng, and therein beheld strange stars and further to strange worlds where life took shape only glimpsed in the nightmares of men. Thus did Nyarlathotep touch the mind of Khossus as he gazed upon the things beyond, and ruin came unto the land of Sohure."
(from the Scrolls of Druuna-Cosaan)

Sorcerer Kings of Lemuria

In those last days of Lemuria sorcerers were given great power by the Old Ones who dwell in the primal dark, and the sorcerers ruled over men as though they themselves were gods. Idols of Great Cthulhu, Sub-Niggurath, and Yig were placed in the once sacred temples of the Elder Gods, even the statue of great Nodens was defiled and men swore that the elder gods of earth had lost their power. The land became cursed and all manner of evil was indulged.

 

 

 

    But in far Kadath, great Nodens watched and waited.
    In time the stars wheeled in their eternal course and the Old Ones slept, in their dreams seeking out other worlds to corrupt. Great Nodens came down from Kadath to the land of Lemuria and the people cried out praises to him. But Nodens did not listen, he went to the high peak of Koltheg-Kla and there he did awaken the fire worm that is the child of Cthugha, and the fire worm devoured the foundations of the land of Lemuria that it would sink beneath the boiling seas.
   All the tribes of Lemuria were destroyed but a few of the Sorcerers were gifted with the sight of things future and past, knowing what was to come they prepared spells and philtres to preserve their bodies and containers for the preservation of their dark souls. For in time the stars would wheel again and even great Nodens would become not even a memory and the Old Ones stir from their dreaming, then would the sorcerers rise and the tribes of man bow down to them again.
(from the Scrolls of Vecra Tutthoon)

The Demon of Yiddaqqua

No scholar knew the origin of the strange demon that lurked the ruined city of Yiidaqqua and no sorcerer knew the true name that might bind or banish it. But the demon rarely showed itself in an angry mood and would sometimes converse with travellers who took shelter in the crumbling palaces of that once great city, telling tales of heroic warrior-kings who vanquished monsters and treacherous sorcerers.
The demon often spoke of a great treasure in the catacombs beneath Yiidaqqua and graciously offered to lead many a traveller to the hidden trove. But strangely none who searched for these riches ever returned.
 (From the Scrolls of Druuna-Cosan)

The Arkham Witch Box

In the spring of 1692 a woman named Keziah Mason was tried for witchcraft in Arkham, Massachusetts. The old woman was accused of being in league with the devil and many strange artifacts were found in her home and submitted as proof of her crime. Mason confessed freely to witchcraft and declared the various artifacts to be gifts from her infernal mentor, a being she referred to as "Nyarlathotep" or "The Dark Man".
 Several witnesses swore to have seen corpses walking in the forests near Mason's home and when questioned about this necromancy Mason claimed the Dark Man had given her a magical formulae that allowed her to trap the souls of dead men into a box and raise their rotting corpses to be her servants. The transcript of her trial even states that audible moans, wails, and hoarse whispers were heard to issue from the witch box.
Based on the overwhelming evidence and Mason's own confession, she was convicted of witchcraft and sentenced to death. However the convicted woman somehow escaped on the eve of her execution, that same night the witch box and her other possessions also disappeared from a locked room in the local church.
 The story might have ended there had not the witch box been recovered in 1939 during the demolition of a long abandoned farmhouse near Arkham. The item was found in the cellar of the old house near a pit containing the remains of twenty four human beings, some of these cadavers were in a skeletal state and dressed in 17th century clothing while others appeared to be much more recent. The disinterred corpses were assumed to be the work of a grave robbing cult, and since none of the remains could be identified the case was quickly closed by the local authorities and the bodies reburied. The witch box was placed in the care of Miskatonic University and has remained there since.