The Grey Rite of Azathoth is a short story written by Robert M. Price. It was first published in the 2014 anthology The Dark Rites of Cthulhu, edited by Brian M. Sammons.
Description[]
When scholarly clergyman John Checkley visits one Joseph Curwen to engage in enlightened discussion, Curwen summons the - alleged - spirit of Jesus Christ, ostensibly as a gift to Checkley, but in actuality to beat the details of an arcane ritual from him.