Yog 1

But here the doctor was cut short by a convulsive cry from the creature before him. Hopelessly at bay, weaponless, and knowing that any show of physical violence would bring a score of attendants to the doctor’s rescue, Joseph Curwen had recourse to his one ancient ally, and began a series of cabbalistic motions with his forefingers as his deep, hollow voice, now unconcealed by feigned hoarseness, bellowed out the opening words of a terrible formula.
     “PER ADONAI ELOIM, ADONAI JEHOVA, ADONAI SABAOTH, METRATON. . . .”
     But Willett was too quick for him. Even as the dogs in the yard outside began to howl, and even as a chill wind sprang suddenly up from the bay, the doctor commenced the solemn and measured intonation of that which he had meant all along to recite. An eye for an eye—magic for magic—let the outcome shew how well the lesson of the abyss had been learned! So in a clear voice Marinus Bicknell Willett began the second of that pair of formulae whose first had raised the writer of those minuscules—the cryptic invocation whose heading was the Dragon’s Tail, sign of the descending node—

“OGTHROD AI’F
GEB’L—EE’H
YOG-SOTHOTH
‘NGAH’NG AI’Y
ZHRO!”

     At the very first word from Willett’s mouth the previously commenced formula of the patient stopped short. Unable to speak, the monster made wild motions with his arms until they too were arrested. When the awful name of Yog-Sothoth was uttered, the hideous change began. It was not merely a dissolution, but rather a transformation or recapitulation; and Willett shut his eyes lest he faint before the rest of the incantation could be pronounced.
     But he did not faint, and that man of unholy centuries and forbidden secrets never troubled the world again


The Case of Charles Dexter Ward, Chapter 7