Screaming or howling

I have not been recording my dreams for a long time, so this one is old and not so vivid. I was at my grandmother's house and it was night, we were riding on a John Deer Gator around. I am not sure who we is, I think a female that I was related to. We pulled up to the front gates and got out. My grandpa was coming out to unhook the gate for us. All of a sudden, right in front of us I saw something. I did a double take. A small girl was standing by the fencepost, her pale face was in stark contrast with the night around her. There were dark circles around her eyes that looked as if they were put there deliberately. Her mouth was a straight line with two sharp fangs sticking out. Her hair was black and neat and she had on a gothic dress. A green glow floated in her wake. Pure terror rent through me. I hurried my grandpa to come. He did not seem bothered, or maybe he just did not see it. One of those dream things, you know, when the DCs do not react to anything. I frantically ran to him. Then my family came out of the house, climbing unhurriedly into the car. I jumped in the car, telling them to step on it. I tried to close my door, but a green cloud shrouded my hand and the girl ran alongside the car, holding my door open. I finally forced the door shut, but still, the girl floated by the window until we got onto the highway. Apparently we were leaving to stay in a hotel. We got in and got a room. Everybody got settled in, but the green glow appeared at the window, then as I watched, the ghostly girl suddenly appeared with her face pressed against the window. I screamed. And woke up. Oh god, one of those big fears for me is that there will be a ghost in my house and nobody else will see it or believe me. Maybe this is why this was such a memorable dream for me.