In the Yatil Mountains south of Perrenland there is rumored to be a magical hoard of unsurpassed value, a treasure of such fame that scores of adventurers have perished in search of it. Find the perilous Lost Caverns of Tsojanth and you may gain the hidden wealth of the long-dead arch-mage-- if you live. Module S4, this contains a brief wilderness journey to the caverns, but the bulk is underground. The caverns are noted as a previous lair of the Arch-mage Iggwilv- though she is long gone, her Demonomicon remains. This module marks the first appearance of several monsters and items that would later appear in the Monster Manual 2 and Unearthed Arcana. A labyrinth features in the caves. TSR 9061

Two common elements mixed together create deadly peril. The last dungeon that many heroes will ever see. This dungeon crawl was based on the original S1 Tomb of Horrors. This is not an adventure for neophyte adventurers. Many traps, puzzles, and monsters exist to kill the party. However, the treasure of the mud sorcerers may be too tempting to pass by! Pgs. 50-70

An ancient palace constructed by the mighty Wind Lord Boreas has a new master: the gnoll sorcerous matriarch Odjanbago and her clan—the Archthieves. With the flying Sky Palace at her command, Odjanbago’s legendary clan of thieves and killers have cast a shadow of fear over the Southlands’ northwestern desert. All tremble in fear of the Archthieves, from the jinnborn tribes of the Dominion of the Wind Lords to the priests of Bastet in Nuria Natal. Even lords of Midgard’s Seven Cities grow uneasy at their mention. Whether they hail from the Southlands or elsewhere in Midgard, the PCs must shoulder the responsibility of ending Odjanbago’s reign of terror.