In the play crucible when Abigail is alone with proctor what claim does she make?

When Abigail is alone with Proctor in "The Crucible" by Arthur Miller, she asserts that it was Mary Warren, not Abigail herself, who was responsible for the deaths of Goody Proctor and other accused women during the Salem witch trials. Abigail goes to Proctor's house to prevent him from presenting evidence that could expose the false nature of the accusations.