An adventure from the collection in Tales from the Yawning Portal offered separately in selected media. Publisher Blurb: The Hidden Shrine of Tamoachan, written by Harold Johnson and Jeff R. Leason, made its debut under the title Lost Tamoachan at the Origins game convention in 1979, where it was used in the official D&D competition. The first published version of the adventure was produced in 1980. The updated version of the adventure presented herein is designed for a group of four or five 5th-level player characters.