Central Xanth (map)

From Author Wars - https://authorwars.com/books/central-xanth-map-1580560.html

Overview:

Title: Central Xanth (map)
Author: uncredited
Year: 1983
Type: Interior Art

Editions/Publications:

Unknown. Night Mare (Unknown, uncredited, Del Rey / Ballantine / SFBC, $5.98, [7]+278 pages, Hardcover, Novel)