In ages past the sorceress queen built her tomb around the only oasis in the region. Many have tried to breach the tomb and claim its treasures, but none have succeeded. For many years a tribe of Kobolds has laid claim to the oasis and has been extorting money from caravans to use the waters. Your group of adventurers has decided to put a stop to this practice and plumb the depths of the tomb as well. A high level adventure.