Finding Celestia

Ella Smith, a sixteen year old girl, dreaming of her years after adulthood, stays at her friend, Celestia's house. It's a normal sleepover, until she walks into the house, and sees her friend lying on the ground covered, from head to toe, in her own blood.
Kidnapper Theodore Green, a twenty-one year old man, kidnaps Ella, forcing her to have children and live with him.