While working in the back garden i had an overwhelming feeling i was being watched from above in front of me. i looked up but couldn't see anything then all of a sudden my eyes focused on an object 75ft in front moving across the front of me very very slowly. i felt as if i couldn't blink in case i wouldn't be able to see it again. during this time of not blinking i observed a egg shaped object in upright position with some person sat in it wearing some kind of a suite. he or it seemed to be looking at me but was unmoving. it was almost transparent and blended in perfectly with the clouds. i knew that once i blinked i wouldn't see it again. once i blinked it was gone. i looked and looked but could not see it again. i would say it's size was about the same as an helicopter cabin all glass fronted.