The 2nd book in the 'Underhill' series. Roberta has her twin sisters in her power now and is seeking revenge for all the humiliations and suffering they put her through, including burning and damaging her beautiful breasts. She forces the sisters to shave each other's heads for starters and then proceeds to break them with savage beatings followed by salt compresses, by forcing them to scrub floors with brushes held in the mouths and making them adopt degrading display poses. Whilst the sisters are being broken to her will, the training of other slaves goes on, 'Tipsy' and 'Topsy' are being disciplined and retrained at the order of their husbands! Life in Underhill continues to be very interesting for those doing the training and incredibly painful and humiliating for those being trained!