Silent saucer shaped craft joining up with a very bright white light

I live in the UK. When I was growing up I lived with my parents in the countryside in South East Kent, near to woods and with very few neighbours.
When I was about 19 -20 years old I was seeing my friend and neighbour (same age) to the door as she was about to go home.  She lived about 200 yards along the road.
As we stood in the doorway I saw a classic shaped craft emerging from the woods, low flying, just seeming to skim the tops of an avenue of trees lining a lane about 200 yards from my house. The craft followed the lane towards a big house (a sort of minor stately house) where a Justice of the Peace lived on her own.
The craft was about the size of a small normal plane I would guess, completely silent, flying slowly and carefully, and as I said before, a classic saucer shape.
I don’t  remember the colour of the lights –  but I later described the lights around the base of the craft as ‘disco’ light (showing my age now) the lights seemed to pulse on and off in sequence.
Just above the stately house (which is hidden by trees) was a very bright light. It immediately made me think of the Star of Bethlehem as it is depicted in children’s Bible story pictures.
The craft seemed to join up or merge with the light and the light seemed to grow and pulse with a surge of power (as if it was taking a big breath) before it flew off upwards and across the sky. When the craft merged with the light I could no longer see the craft – just the light.  It moved so fast it was hard to follow it with my eyes. Also it did not fly across the sky as a normal plane would but across and up.
I also tried to signal to it, by turning the outside light on and off. (not sure why I did that).
Later I found out that the lady who owned the house had also seen it, and I telephoned her, to tell her that I had also seen it. She was a very grand and dismissive lady but I managed to get out of her that she had seen ‘them’ hovering in front of her house. She told me that she had reported it to the RAF.
Recently I was reading about cattle mutilations possibly being involved with UFO activity, and I remembered a boyfriend of mine being stopped by the Police, around the same time I had seen the UFO. He had been stopped and his car searched after leaving my house one evening, because there had been a lot of sheep mutilations in the area, and they had searched his vehicle looking for knives etc. There may be no connection at all, but it is worth mentioning here.
Also, as regards the different shapes of UFOs: Go to the Pukka Pies UK website.  Click on Online shop. Click on Posters. Look at the poster entitled ‘ Pukka Pies Westminster Taste Invasion’-  now…....is that a cigar shaped UFO or a saucer shaped UFO? are people getting the two shapes mixed up?
Witness indicates that date of incident is approximate.  PD