White Plume Mountain, by Lawrence Schick, was originally published in 1979 as an adventure for the first edition of the D&D game.
Schick related in the 2013 compilation Dungeons of Dread that he wrote the adventure as a way of persuading Gary Gygax to hire him as a game designer.
This purchase unlocks the entire contents of the book version for use with D&D Beyond, including the adventure in digital format in the game compendium and access options from the book in the searchable listings, character builder, and digital sheet.
Adventure Bundle
Legendary Bundle