One day, the servants all went to look at the fine people at a ball. Cap-o'-Rushes said she was too tired, but when they were gone, she took off her rushes and went to the ball. Her master's son fell in love with her, but she slipped off. This repeated two more nights, but the third night, he gave her a ring and said he would die without her. There were no more balls, and the master's son took to his bed. They sent orders to the cook to make him some gruel, and Cap-o'-Rushes pleaded until the cook let her make it instead. She slid the ring into the gruel.