We were sitting outside on my patio and I noticed an object that flew very slowly over my neighbors rooftop. It came into my view and began hovering in the sky near the tree tops. It was tubular in shape with three white lights. The silhouette of the object was visible, as a shadow surrounding the lights. The three lights were all in a row..white. Then out of no where it disappeared in a very bright flash, a definite ascension upwards. We also heard a "puff" sound, very similar to when you first turn on your gas grill!! I don't know what it was, but it was a craft of some sort. Very strange indeed!