In "Thundermuffs" by Cinder Blobaum, the theme that is likely developed by the details in the passage you are referring to is "listening to people is better than assuming things about them." This theme underscores the importance of understanding and communicating with others rather than jumping to conclusions based on fear or stereotypes. The characters' interactions and the decisions they make can illustrate how listening to one another leads to better outcomes and stronger relationships, particularly in the face of challenges such as severe weather.
If you provide more specifics about the passage, I can help further analyze how the details support this theme!