Nostro, from Ultima IV
Nostro had been the original builder of the Jhelomian secret passages, and had been imprisoned inside of them for reasons unknown. Likely having been told by Lord Robert that the engineer had knowledge of the city's Rune, the Stranger could find the bedraggled soul and agree to lead him to safety. The grateful prisoner would reveal that the Rune of Valor was buried within one of the city's towers.
- The Stranger has the option to refuse to help Nostro, although the architect will follow them out of the passages regardless.
- In the document discovered by historians Robert De Main and Carlotta Stein that purports to be the Avatar's personal diary, the Stranger describes Nostro as being withered and extremely sick from his confinement, and the hero's companions have to assist him in walking.
- In the Nintendo port of Ultima IV, Nostro has evidently succumbed to the toll of his imprisonment, and appears as a ghost, bound to eternally haunt the room in which the Rune is buried. Unable to leave, he asks the Stranger to take the Rune and to complete the quest of the Avatar which he can now never attempt.