What tone does Douglass use when he describes Mrs Auld?

Frederick Douglass describes Mrs. Auld with a tone that shifts from admiration to disappointment. Initially, he portrays her as kind and compassionate, highlighting her nurturing nature before she becomes influenced by the institution of slavery. As she transforms into a cruel figure, Douglass conveys a sense of betrayal and sadness, emphasizing the corrupting power of slavery on her character. This tonal shift underscores the moral degradation that slavery inflicts on both enslaved individuals and their enslavers.