Short answers, pulled from the story.
The Temple of the Frog module was released in 1986 as the official product designated DA2. This publication carried the TSR product code 9175 and was designed to be usable with the Dungeons and Dragons Expert Set.
Dave L. Arneson and David J. Ritchie collaborated to write the 1986 version of the Temple of the Frog module. Arneson was the co-creator of Dungeons and Dragons and brought knowledge from his early Blackmoor campaigns to the project.
The Temple of the Frog is located deep within the Great Dismal Swamp. This treacherous landscape serves as a character in the story and tests the resolve of adventurers navigating the murky waters and dense foliage.
The main goal of the players is to rescue a captive baroness held within the temple. This mission requires them to navigate the dangers of the swamp and dismantle the power of the frog cult that dwells there.
Dave Arneson created the original Blackmoor setting which served as the foundation for the early days of Dungeons and Dragons. The Temple of the Frog module was a direct continuation of this world and a tribute to its legacy.