Question: Who were pseudonymous writers who documented their use of dimethyltryptamine and other psychedelic tryptamines and phenethylamines whos names were based off of  the "gratuitous grace" that a man who graduated from Balliol College at the University of Oxford with a first-class honours in English literature found in the psychedelic experience ?
Sentence (from "Gracie and Zarkov"): Gracie and Zarkov were pseudonymous writers who documented their use of dimethyltryptamine and other psychedelic tryptamines and phenethylamines.
Relevant evidence: Yes