Pip is made aware of the link between himself and Estella, butit is far from what he imagined it to be. Estella is the child of the convict Pip met on the marshes as a child; the man who became his benefactor throughout his life. Estella was botn to a violent mother who was acquitted of the murder of another woman, though was surely guilty. The woman, we understand, was assisted by Jaggers at her trial and is now his housekeeper.
The convict was afraid of his mad wife, especially as she threatened to harm the child. It is ironic that when Pip and the convict meet on the marshes, he realizes that the boy is about the same age as his estranged daughter, and this is in part why he cared for Pip.
Pip thus discovers that Estella, the paragon of genteel manners, class and good breeding ,is the daughter of a murderess and a convict.-
And the man we have in hiding down the river is Estella’s Father.