Back in her prison cell, Hester is in a state of nervous frenzy, and Pearl writhes in painful convulsions. That evening, when Roger Chillingworth enters Hester's prison cell, she fears his intentions, but he gives Pearl a draught of medicine that eases the child's pain almost immediately, and she falls asleep. After he persuades Hester to drink a sedative to calm her frayed nerves, the two sit and talk intimately and sympathetically, each of them accepting a measure of blame for Hester's adulterous affair.
Chillingworth, the injured husband, seeks no revenge against Hester, but he is determined to discover the father of Pearl. Although this unidentified man doesn't wear a scarlet A on his clothes as Hester does, Chillingworth vows that he will "read it on his heart." He then makes Hester promise not to reveal his identity. Hester takes an oath to keep Chillingworth's identity a secret, although she expresses the fear that her vow of silence may prove the ruin of her soul.
