The Egreth Castle, once the royal abode of the proud king Duncanthrax, has now become a terrifying, haunted place. Trolls, hobgoblins, and night gaunts have turned the castle into their permanent residence. On top of that, an evil, insane, and powerful wizard is controlling everything that happens in and around the castle. A caravan of brave adventurers, guided by a magical amulet, reaches the castle. Will the heroes be able to overcome all obstacles and find a way to defeat the evil?..