Silverton has declared you an enemy, and has sworn revenge
Silverton is the son of one of the Tomb of Horror Mercenaries. His father’s interest was entirely in runes, whereas Silverton’s only interest is in money.
He believed he could turn the Tomb of Horrors into a spot for tourism, but was constantly rebuffed by the remaining traps. The final straw was the discovery of a minotaur still roaming the Tomb. The Old Woman’s employees, who had accompanied Silverton, refused to kill the minotaur, and forced Silverton to leave the Tomb, despite Silverton’s threats of violence.