Rosa Garland is Frederick's sister. She works as an actress in a London theatre, and lives with Frederick in the rooms attached to the photography shop. When she decided to be an actress she had to leave home, as her parents were very strict about what was proper for a respectable young lady to do. Rosa does not care about what society thinks or what is respectable; she only cares about doing the things that she loves and that she is good at. She is instantly very accepting of Sally, probably because she sees a little of herself in her. Like Sally, Rosa is strong and independent, and does not want to play by everybody else's rules. Like Sally, she is more like a modern girl than a Victorian one.
