Arial

Arial is the daughter of Baron Almric, and because of her status, a key NPC in Ultima Underworld I.

Tyball saw her as ideal for the sacrifice to open the Chamber of Virtue with the Slasher of Veils, since she fulfilled the criteria of being both virtuous and a virgin. He had her kidnapped and brought into the Stygian Abyss to sacrifice her. The Avatar was sent into the Abyss to retrieve her, eventually managing to kill Tyball and free Arial. She returned to the surface to warn the people of the impending disaster, while the Avatar continued on the quest to banish the Slasher of Veils.

Arial was later reunited with the Avatar as they escaped the Isle of the Avatar on her father's ship after the eruption of the Abyss.

Trivia
The only voice she utters aloud, a scream, is provided by Mary Margaret Ipser.