It was my sister's senior year of high school and I was an 8th grader. That night for an assignment my sister was required to take pictures of graves in a local cemetery and make a poem about the person who had died. The poem did not have to be true it just had to be inspired by the person's grave. So my mother, my sister, my sister's boyfriend and I all piled into my father's truck and we drove out to the cemetery just outside of town. It was around 9:00 pm and it was already pitch black and there was no moon.
If you've never been in a cemetery at night and felt what it is like, I dare you to do so. For me, just the atmosphere was creepy with the headlights being the only source of light, illuminating the graves of those who had died. At this age I had had one or two encounters with ghosts so just being in this place had a strange effect on me that made me edgy and nervous.
My sister and her boyfriend got out of the truck and started walking along the graves with my mom driving on the road that trailed through the cemetery for those who just wanted to drive through to see the graves. We got to a certain grave that was depicted as an angel standing with its arms open and looking down, seeming to open its arms waiting for an embrace. My sister was fascinated with this grave while I, still in the truck, was completely freaked out by it. In the light cast by the headlights it seemed almost alive, like it was staring at my sister waiting to grab her.
We kept driving along behind my sister and her boyfriend waiting for her to finish. Suddenly I saw a black shadow dart out from behind a grave and vanish. More appeared as we went on, darting just out of the reach of the headlights, still enough to see them but not enough to make out any features. My sister claims to have seen them too and that their faces were white like the dead with black holes for eyes and mouths. She had to finish her assignment though so we continued into the cemetery, my mother never even seeing what we did.
Suddenly I saw a black shadow press itself to my window. Its eyes were like black orbs and its mouth opened wide like a snake's would, sending out a shivering death rattle (something like what Kayoto from "The Grudge" made). The temperature in the truck dropped so fast I could see my breath two seconds after I had been telling my mom I was sweating. I didn't scream but just stared at it in horror so as not to freak out my mom and make her think I was having hallucinations.
The shadow moved away and vanished and they all disappeared. My sister never saw the one by the truck but this freaked me out so bad I had nightmares for years about it... It was a long night afterwards.