Called by the Elder Elemental Eye to serve, four corrupt prophets have risen from the depths of anonymity to claim mighty weapons with direct links to the power of the elemental princes. Each of these prophets has assembled a cadre of cultists and creatures to serve them in the construction of four elemental temples of lethal design. It is up to adventurers from heroic factions such as the Emerald Enclave and the Order of the Gauntlet to discover where the true power of each prophet lay, and dismantle it before it comes boiling up to obliterate the Realms.
Trapped in the mysterious Castle Amber, you find yourselves cut off from the world you know. The castle is fraught with peril. Members of the strange Amber family, some insane, some merely deadly, lurk around every corner. Somewhere in the castle is the key to your escape, but can you survive long enough to find it? TSR #9051, from 1981
Hellgate keep - a name that once made the boldest of heroes shudder in fear - was long ago known as the fair citadel of Ascalhorn, a haven for elves and humans. The the demonic horde of bateezu and tanar`ri destroyd all remnants of real cicilization and turnet it into a den of malevolence. Today, the citadel lies ruined. The mistmaster and the harpers destroyed the keep and ended its centuries-long reign of evil...or so they believed