November 5th UFO sighting

Ok check this out. On 5th November [08] my sons and I were just preparing the bon fire we were waiting for my girlfriend and daughter to arrive. We all had a strong [feeling] that we were going to see something strange. My whole family had recently witnessed the orange lights that have been buzzing the Barry area.Well, here goes...we saw one [land?]. The object came into our field of vision from the North-nnw, it was the usual bright orange passing through very low cloud [under a thousand foot on the night I checked] it came over the house at about a thousand foot [it was in the upper edge of the cloud] it started to then fade, at which point I looked toward my oldest son, he was still staring at it and said 'It's going black'...it was. But this was not just fading out, it was EMITTIING blackness. The back door of my house is facine a natural amphitheatre the horizon of which is about a half mile from my house, the object came down INSIDE the horison. As it descended it blocked out the house and street lights across the way.We judged it to be in the 10- 20 foot across range as it reached our relative eye level, and it was well within a quarter mile of us.As it came to within what looked like about 20ft of the floor we don't know...it seemed to pass into the ground, or disappeared difficult to tell, it just wasn't there anymore.My sons are the MOST prosaic pair of buggers you're ever going to meet, if you can't cut your finger on it, they don't believe in it,and they are still a little stunned the next day.