Hilde’s mother is a confusing character. She only interacts with a few times in the text—for the most part, Hilde is too busy reading Sophie’s World to spend time with her mother. Since we know that Sophie’s World is a story written by , Hilde’s father (featuring thinly-veiled versions of Hilde, Hilde’s mother, and Albert himself) it’s unclear what conclusion we’re meant to draw when Sophie accuses her of adultery—is this supposed to reflect Hilde’s insecurity, Albert’s suspicions, or both? While this mystery isn’t resolved, it’s fair to say that Hilde is far closer to her father than her mother, but the reason why is never satisfactorily explained.