We learn that an otherworldly force has taken over not only Stephanie, but countless children across the world to cause destruction. Her parents try performing brain surgery to nullify her abilities. But the telekinetic powers of the being in control takes control, even though she is unconscious, and stops the operation.
Stephanie, unaware of the events of the last few days, acts like a normal child again. The parents then learn that officials are saying that the only way to stop any infected children is to kill them. With a heavy heart, they poison Stephanie's drink. But once again, the entity possessing her stops her, and Eric is forced to shoot her. It's only a short-lived victory. Stephanie returns and murder her parents.
She leaves the house and destroys the others, a tentacled shadow following her. As she leaves, she drops the stuffed turtle toy that she had been holding throughout the film, signifying that now, her transition is complete. Rather than fighting it any longer, she fully sheds her childhood, becoming one with whatever has taken over her mind. We never fully learn what is doing this or its intention. Rather, we are left with the film's ambiguous yet horrifying reality that this world's children no longer have a childhood. They are slaves to an all-seeing, mysterious power that controls their every move.
Is it symbolic for the rapid growth of youth today that sees them gain information so fast that their childhood is lost sooner? The ending leaves itself open to interpretation, all we know for sure is that "Stephanie" holds nothing back in delivering a chilling supernatural venture.
