Lost and Found is a novel written by Ruby Jean Jensen. It was first published in 1990.
Description[]
A Mother's Terror
The dreams had been coming with increasing frequency. The ground splitting open...the head of an infant emerging...its teeth...Magret would wake up screaming to find herself safe in bed with her husband beside her. It had, after all, been only a dream. And dreams could never hurt you.
A Child's Revenge
Then Magret's daughter Sheena came home telling stories about the little girl in the forest. A strange little girl with funny sharp teeth. Magret put it down to Sheena's overactive imagination. Until the killings began. Killings that were seemingly random. Only Magret knew they were not random at all. In fact they made a certain terrifying sense. If only she could bear to face it...
Night after night, Magret dreamed the same horrific nightmare: the ground split open ... the head of an infant emerged, it's eyes wide open, it's mouth filled with pointed, needle-sharp teeth. Then her daughter told her about the girl with funny teeth in the forest. Then the random killings began. Then Magret knew the terrifying truth.