School year of 2013. i was the only one who witnessed it for my family. about 7 o'clock at night it was starting to be winter.I watching tv in my living room. i saw purple lights flash one time,from over the lake in the air. i ran outside to take a closer look.My dog started barking. i went out to my driveway. my driveway is a shared driveway with my neighbor. he was gone. i looked up in the sky moved over to my neighbors side of the driveway. i saw giant triangular dark figure bigger than 4 houses. fly low from the lake over a bunch of houses including mine. and i watched it till i couldn't see it anymore. after i couldn't see it anymore the dog stop the barking. it was pretty close to the rooftops of the houses. close as within 200 feet from the rooftop of the houses. the craft was long lengthy triangle. it had a narrow tip and a fat back. it made no noise and it flash purple lights once. i tried to take a photo but my phone was dead.