Legacy of the Tombs (Book)

... were sealed with powerful magic. Only those were allowed to pass who sacrificed one of the peculiar coins that in ancient times were paid by those who came to visit their beloved dead. For this was the way of the Ritual of Sealing. Behind the seal, the mighty traitors were trapped forever. Such was their hatred and their lust for revenge that the very walls and stones became imbued with them and the lower tombs turned into places of utter doom, places where no mortal should venture to go. And to this day one of the traitors lurks in each of these tombs, surrounded by vicious traps and by powerful minions that serve both to protect them and to hold them captive. Woe to the fools who dare challenge the traitors in their prisons! For torturing and killing intruders is the only amusement that is left to these tortured souls.