After returning to her room, Anna threw a cluster of green flames into a wooden barrel filled with water. The water would be soon heated up.
She took off her clothes and stepped into the wooden barrel.
When witches wanted to clean their bodies, they came to Anna to help boil the water. After all, it was troublesome to fetch water from the kitchen. Roland was surprised when he found out. It seemed like it was difficult for him to accept the repeated usage of bath water.
When Anna thought of this, she found it funny. For a commoner, it was difficult enough to clean his body once a month. Thus, it was very common to use bath water several times.