Someone Is Following Me!

Something, or someone is following Zee-Zee! It not only happens in her dreams it happens every year at a certain time, the season leaves, which happens to be fall. Her little sister Charlie, and her best friend Olivia know all too well that someone is following little Zee. I am running fast, yet it runs just as fast, but when I turned to see who, or what is following me, it vanishes like poof...go...