Hello. You did not show the passage to which the question refers, which makes it impossible for it to be answered. In the meantime, I will try to help.
Inferences are conclusions that are drawn from reading a text. In this case, it is only possible to answer your question by reading the text, however, we know that these conclusions are related to the behavior of a character called Balto. In this case, we can consider that the behavior of a person can bring conclusions about the personality of that character, about the tension level of a scene, about the tone and mood of a text, about the characterization of another character, about the plot stage and many other things.