We has a family were camping every year. during the six weeks holidays at a place called holt fleet next to the river seven about 15 miles southeast of worcestershire city .We were enjoying the night .We were all outside doing what campers do when i looked a observed a dull glowing orb the size of i would say was the size of a volkswagen beetle it was at the height of a police helicopter . i was so shocked i alerted the rest of the family .Doing so i noticed the object had a nuclear pulsating orange and deep red rotating movement .The outside of the vehicle seemed to have a graphite marble turtle shell effect. but very transparent look towards the middle but stayed on a upright fixed flight while the centre rotated .I think at the time they seem to be drones because there seem to be no room for any other person or being .Has the object moved away from our location .I looked up behind me to my dismay there was another identical orb .Half a mile between each other .On the very same direction . and identical flight path with no noise coming from any of the vehicles ,speed between 70 and 100 miles per hour .I,m so sorry that i did not get any video evidence ,because of being so dismayed to what we saw .I know this story seems to be far fetched .But seeing is believing and i know what i saw .Just another little tale same location the year before but doing a little night fishing . this was about 9,oclock just a half an hour before dark three large booms about 3 minutes apart . very frighting .But the noise seem to come across the earths surface right in to your face . two football pitches away was the camp site but my wife or any other member of the family nether heard a thing which i think at the time was concerning and very confusing .