Plagues in the Planes
Beneath the Mausoleum ruins from an ancient Tiefling empire are buried.
A corrupted Eladrin Wizard kidnapped the two sons of the silversmith, Nate, and held them captive beneath the Mausoleum. They were to be used in a sacrifice to an unknown dark god or demon. Five adventures, later to be known as the Rogue Wolves, entered the Mausoleum, rescued the boys and vanquished the dark wizard.
They found a book of dark magic and destroyed it whereupon a shadow rose up and flew to the east beyond sight and was not heard from again.