User blog comment:Oknight/Artemis, Cheshire = sisters pretty much confirmed/@comment-173.66.189.214-20110914235012/@comment-173.66.189.214-20110928164339

All I'm saying is that we don't really know if Artemis has an older sister, or a younger sister. We just know that she actually has a sister (this is coming from the person who asked the question by the way).