I was standing outside with my sister and her friend at night. we were talking on the porch when we heard a high-pitched whirring sound. i looked up and screamed. flying above, there was a massive triangle craft that was solid black in color. there was a white light at each point of the triangle. my parents came rushing out just in time to see it disappear over the mountain. everything went silent, then there was a huge rush of wind blowing in the direction the craft went about 10 seconds after we lost sight of it. an hour later, i looked out my window to see a black helicopter flying over the mountain in the same path the craft did.