What does this letter mean?--and why dost thou wear it on thy bosom?
Hester has grown contemptuous of her husband, and she realizes the hatred that she has for him while she is going back to get Pearl.
While Pearl was playing on the beach, she gathered seaweed to form into an A, showing her admiration for the symbol that her mother wears.
Mother, who is the Black Man?
Pearl asks what the reason is that Hester wears the letter, and Hester decides that Pearl is too young to know the true meaning of the letter.
It is no Black Man! ... It is the minister!
There he is, right over there.
Hester hopes to tell Dimmesdale of the true identity of her husband, and so Hester and Pearl wait for him on his walk through the woods.
Pearl is asking questions to Hester about the Black Man in the woods, because she overheard Mistress Hibbins talking about it
When Dimmesdale arrives, Pearl seems to be able to sense the "Black Man" inside of Dimmesdale. Hester assures her that it is not the Black Man, and she sends her off so her and the minister can talk in private.