Tomb of Horrors

"Tomb of Horrors is a far-reaching Dungeons & dragons adventure that takes characters from 10th level to 22nd level, with natural break periods for other adventures. It includes background material, adventure hooks, new monsters and magic items, and a powerful campaign arc that pits heroes against a deadly dungeon complex and its echoes in the planes of the Feywild and the Shadowfell"--P. of cover.