Final answer:
The question is a reference to the fantasy novel 'Oathbringer' from 'The Stormlight Archive' series, where the character Renarin magically heals Adolin.
Step-by-step explanation:
The question does not pertain to an academic subject but references events from the fantasy novel series The Stormlight Archive by Brandon Sanderson. Specifically, 'Renarin heals Adolin's arm' refers to a scene in the book 'Oathbringer,' the third volume in the series. Renarin, a character with magical healing powers, heals another character, Adolin, during a significant event in the storyline.
This interaction showcases the fantasy elements and character development within the series, and students may seek to understand the significance of such scenes for character analysis or literature studies.