Question: De Selby is a fictional character written by which Irish writer?
Sentence (from "De Selby"): "De Selby" (spelled "de Selby" in "The Third Policeman" and "De Selby" in "The Dalkey Archive") is a fictional character originally created by Flann O'Brien for his novel "The Third Policeman" in which the nameless narrator intends to use the proceeds of murder and robbery to publish his commentaries on de Selby — a crackpot savant who theorizes, among other things, that the earth is actually shaped like a sausage.
Relevant evidence: Yes