Hope Everlasting. [COMPLETED.]

Meet Ashlynn Carter; sixteen years old, quiet, bullied at school. Meet Hope Carter; sixteen years old, extremely loud and...dead. Eleven years ago, Hope died in a tragic accident, leaving her twin an only child. Now, over a decade later, Hope's back...but not in the way you'd expect. A traumatic and brutal incident leaves Ashlynn herself close to death. Who saves her from a terrible fate? Her dead twin sister, talking to her in her head. Now, as Ashlynn tries to recover from an incident most would not survive, for the first time in her life she has a friend. Only this is a friend with a difference. Hope never leaves, residing in her sister's head constantly. Every thought, every movement, every breath is watched by the girl. Suddenly, school isn't so horrid anymore and Ashlynn...Ashlynn isn't alone. But is what Hope's doing right? Or is it even 'Hope' at all? Is this some terrible shock-induced phenomena, or do the dead never truly leave?