An adventure from the collection in Tales from the Yawning Portal offered separately in selected media.
Publisher Blurb:
Before there was much of anything else in the world of the D&D game, there was the Tomb of Horrors.
The first version of the adventure was crafted for Gary Gygax’s personal campaign in the early 1970s and went on to be featured as the official Dungeons & Dragons event at the original Origins gaming convention in 1975. The first publication of Tomb of Horrors, as a part of the
Advanced D&D game, came in 1978.
As a proving ground for characters and players alike, fabricated by the devious mind of the game’s cocreator, Tomb of Horrors has no equal in the annals of D&D’s greatest adventures. Only high-level characters stand
a chance of coming back alive, but every player who braves the Tomb will have the experience of a lifetime.