Lair of Abrax the Skarily Evil

From the introduction: A group of powerful adventurers have found the hideout of an evil mage, long thought to be dead, slain four years ago in Myth Drannor. His allies and henchmen seem to be of the lesser type, so a notice has gone up on the town noticeboard, giving the lairs location. Thus, any would be adventurers could go and interfere with his evil plans by invading his evil den.