Shield Guardian -
The wizard is dead, finally. His servant, a shield guardian falls inert after the wizard is destoryed. Many years later, the shield guardian has returned, and one by one, is killing the old members of the party that destroyed its master. Also, the guardian vanishes without a trace after each attack, leaving few clues as to its whereabouts. Thinking their old foe has returned from the grave, they unearth the wizard's casket from the old cemetary only to find that his remains still there. Who controls the guardian then? And why do they want the old adventurers dead?