An Upper Bucks County woman is accused of working as a prostitute at a brothel operated out of a Delaware County row house. Police say 38-year-old Amy Prudish would drive 60 miles from her rural Durham Township home to Upper Darby, where she worked as a masseuse.  They say she got $80 for a massage, and she performed various sex acts in return for generous tips, serving at least four clients per day.  The alleged madam, 41-year-old Margaret Dougherty, operated the business out of her home between 11:00am and 4:00pm, while her young son was in elementary school.