Mark Twain remembered her as a softly slippered phantom who would sneak up and let out a piercing war whoop before drifting to the piano to sing melancholy songs. Strip away the marble-statue image of the woman who wrote Uncle Tom's Cabin, and you find a complicated, unpredictable, deeply human being.

This deep dive humanizes the author behind the most consequential American novel of the 19th century, exploring how personal tragedy fueled her political fire, how scandal destroyed her reputation overseas, and how a rigid moral certainty produced both her greatest triumphs and her most damaging contradictions.

• How witnessing her own father ban debate over slavery taught her the dangers of silence
• The death of her son Samuel that let her channel maternal grief into the plight of enslaved mothers
• The truth behind the  ...