Penny and Paul Harris see a mysterious white object in their field at dusk. It seems to hop and appears and disappears from their sight. Ula an older girl at school tells them they have seen an evil spirit or a ghost and that Penny and Paul will have bad luck. Ula the school bully, is bent on causing trouble. School lets out and the Harris children have the summer to search for answers. Ulas father has not been able to support his family but has gotten...