This happened to me when i was out with some friends late on halloween night.Of course we were looking for something scary cause it's halloween right?So we decide to go mess around at an old cemetary which is supposed to be haunted. Well, at first not thing was happening but,then we were hearing what sounded like a clank-clank sound.ya,know metal on metal sound.which,was weird cause you could see everything around you for at least a hundred feet.But,you could not see what was making the sound.what was really freaking us out was that the sound was getting closer and closer.My friends were ready to go ahead and take off but,I'm the kinda person that has to know why everything is happening.Now I was starting to get uneasy now that the sound was right next to us but,i don't think that was as bad as when the sound stopped.Now I was wanting to get the hell outa there.But, we were then interrupted by a sound of a moaning now.I asked my friends if they were hearing this to or was i imagining it.Now what was funny was that this scared us so bad that instead of taking the car out of there,we ran a mile down the road and did not come back for the car until the next day. Since,that night we never went back the cemetary again.