The Newarks are a familiar and influential family in the Commonwealth of New England
In the Time of Dying Stars, countless children warped by the black rain were slain after birth as monsters and hellspawn. A special one lived, to her dismay.
Teenagers who run away from home to live in the wilderness may become feral. As they become more and more feral, they gain some supernatural powers (a la Peter Pan - ability to fly, things they imagine come true - possibly quite powerful), but at the expense of their humanity and ability to speak, comprehend complex subjects, etc. Maybe they have a leader: the most feral of them all.
A regression into a fantasy childlike state.