| ||Her eyes were blue, not black. And she had freckles - on her nose, her neckline, her shoulders. They weren't unattractive, they suited her complexion and reddish hair.|| |
|- pg.33, The Last Wish (UK edition)|
Iola joined the Temple of Melitele and pledged herself to the goddess by taking vows of silence, which remained unbroken. She studied under Nenneke, learning healing skills and magic, and was considered quite bright in the older priestesses' eyes.
After Geralt of Rivia was injured in a fight and came to the temple to recover, Iola cared for him, which eventually led to a relationship between them, and them sleeping together. Later, Nenneke walked in to the room and asked Iola to leave, as she believed the relationship was not appropriate, considering it would distract her from her duties, even though it was her that had sent Iola to his room to calm him down.
Later Geralt told Iola about his life as a witcher, explaining his training and monsters he had fought, and as he explained she showed interest in his swords, nearly cutting herself, and worried he was upset, trying to comfort him. Later as Geralt was leaving the temple, Iola bought out his chest of elixers and gave them to him and as their hands touched, Iola suffered a seizure and was carried off by pupils to be later treated to by Nenneke.
Like in the short story, Iola slept with Geralt while he was healing from grievous damage. In the TV series, the healing aspects of said encounter were highlighted, and in the aftermath Iola foresaw destruction coming to the temple. This vision and its setting differ quite a lot from the scene that essentially ends "The Voice of Reason".