The mighty Castle Rodinfall was the crown jewel of its kingdom, and it was where the Queen resided. It was the location of the dark betrayal and the slaughter of the Tarpis Troupe. It was the epicenter of the darkness that was unleashed, dooming the land and all its inhabitants.
Being ground zero for the Curse of Madness, the dark castle was used as the base of operations for Alessia in her campaign against the Mad Lords.