In 1985, TSR published the module named “The Temple of Elemental Evil” with the module code “T1-4”. It was written by Gary Gygax and Frank Mentzer, and was published by TSR in 1979. T1-4 consisted of 128 pages, with 16 pages of maps. In addition to an extensive dungeon complex, the module provided guidance on expanding and creating additional levels and encounters for the adventure in the Elemental Nodes. The module was generally very well received, and it was ranked as one of the top 4 Dungeons & Dragons adventures by Dragon Magazine In 2004.
This conversion guide allows DMs to run the original module with 5th Edition rules and provides a reference sheet for encounters.