Mahlia is a character from the book The Drowned Cities. She is a war maggot and the best friend of Mouse. She is half Chinese, with her father being a general during the wars and her mother a pure Drowned Cities. She used to be quite privileged but when her father abandoned her and her mother, they were forced to escape. During the escape, they got caught by the Army of God. Mahlia's mother was killed, while she got her right hand cut off. This was when Mouse saved her. Together, they went to Banyan Town, where they were taken in by the town's doctor, Doctor Mahfouz.
I'm not all that sure about my facts because I only started reading the book but hey, it's better than what some idiot wrote before.