This would be in Act IV. I think that the discussion that is ongoing between both Sarah Good and Tituba reflects the voice of the dispossessed. Both women were accused and thrown in prison with the smallest of evidence. Both women are living proof of how diversity and those who are different never stood a chance within the emotional contagion of Salem. In their discussions, one hears how the voice of the silenced can actually be heard. There is little in way of social validation of their voices, which is why they are heard only by one another. In this scene, I think that Miller is creating a realm whereby those who have been socially silenced can find a domain where each humanity can be recognized by the other. It should not be lost that they are insane and are battling through bouts of madness. This is reflective of how the town, itself, has lost all sense of reason and control. In the end, the town is enduring its own madness and ramblings, similar to Sarah Good and Tituba. While their voice is silenced and their presence is shunned, the madness that they embody is evident in the town, and their discussions, while determined to be "different" by those in the position of power, actually seem to be not really different than what is happening in the town, as evidenced by Parris.