Sheila Delacourt

 is a flying abnormal married to Bruno Delacourt, another bat-like flying abnormal.

She and Bruno desperately try to find means to free a group of orphan flying abnormal children from an evil abnormal black market seller name Finn Noland. After a few road bumps along the way, this is achieved with the help of Dr. Helen Magnus and Henry Foss. The orphans are actually of the same species as Bruno and Sheila. They start a family with these orphans, who Sheila is emotionally tearful and happy about.