Question: Dunwich is part of which imaginary region whose name was coined by Keith Herber? 
Sentence (from "Lovecraft Country"): Lovecraft scholar S. T. Joshi refers to the area as the "Miskatonic region", after its fictional river and university, while Lovecraft biographer Lin Carter calls it Miskatonic County, though Lovecraft indicates that at least some of his fictional towns were located in the real-life Essex County of Massachusetts.
Relevant evidence: No