Short answers, pulled from the story.
The year 1975 marked the first appearance of a scenario that would eventually become Temple of the Frog. Dave Arneson included this adventure in his Blackmoor supplement during those early days of roleplaying game history.
Dave L. Arneson and David J. Ritchie wrote the 1986 version of Temple of the Frog together. Their partnership combined decades of experience designing complex scenarios for tabletop games.
TSR published a revised edition as module DA2 in 1986 with product code TSR 9175. This new version expanded the story into a forty-eight page booklet designed for the Dungeons & Dragons Expert Set rules.
Player characters must journey deep into the Great Dismal Swamp to find the source of their troubles. An evil temple stands hidden among the cypress trees and murky waters waiting to claim more victims.
Denis Beauvais created the striking cover art that greeted customers when they opened TSR 9175. Mark Nelson provided interior illustrations that brought the swamp scenes to life inside the booklet.