Meet Makenzie Underworld, Mal's sister and the other daughter of Hades. She has an older brother Hadie too. Her father always preferred Mal and talked about Mal/asked about her. Hades cared about her when she was a baby. As she was a baby, a little kid. He taught her how to be nice and gave her the middle name Rosalie after his wife Persephone. After she reached age 13 and/or 14. She didn't need help anymore at least not much in Hades opinion/mind. So, he stopped really cared for her. At least not as much as Mal. Makenzie realized she could actually do magic/spells. Despite being on/stuck on the Isle of the Lost. She kept this a secret though. Read more on Makenzie'd life and story in; Makenzie Underworld The Outcast.