From Introduction:
The adventure revolves around the legacy of Delgar, a wizard responsible for many bizarre experiments, chief among them the creation of "horrors." These horrors plagued the region unchecked
until a stalwart band of adventurers put an end to his madness. As the years rolled by Delgar was forgotten, the legacy of his horrors all but obliterated, until now.
"Legacy of Horrors" is a D20 System adventure designed for 7th to 13th level characters, automatically scaled to fit a DM's campaign setting by the Xenogenic Publishing System™. The adventure can easily be placed in any campaign world (preferably in an arid setting) and provides opportunities for every core
character class to shine. The adventure works equally well with characters with questionable motivations.