The Wrath of Olympus is designed for use with the Dungeons and Dragons Immortal rules.  While the back says that it cannot be played without the D&D Basic, Expert, Companion, Masters and Immortal rules with a little work it can be adapted for use with AD&D 1^st or 2^nd edition.  This module will challenge characters of immortal levels.   Authored by Robert J. Blake.   It was published in 1987.

SYNOPSIS

Immortals lie chained atop a mountain in the Broken Lands.  Their bonds relentlessly drain their power while demons cavort with glee around the wispy barrier, as strong as any prison.  Have you the courage to embark on a dangerous mission for the materials necessary to craft an artifact?  If you survive that task, you must them assume the identities of legendary heroes of Darokin and face deadly Immortal foes without revealing your Immortality!  The demons of Entropy stand between you and your final goal.  Have you the power to rescue the imprisoned Immortals and preserve the prime plane?  The future of the prime plane is in your hands!