This is going to sound mental ... one night at The Red Lion Hotel, I was a live in night porter there so not on a ghost investigation a vivid sharp dense black outline of a woman walked past my
direct line of vision. I assumed it was my boss because a woman ran that hotel at the time, she was my boss but trying to find her?, there was nowhere anybody could have gone in the time I got up to meet 'her' in the direction 'she' was travelling. It looked like something that had been cut out of paper so a shadow person people call them. I have to emphasise the word dense because absolutely no light reflected back off of it but it moved naturally like someone walking in haste from right to left. It was solid. I'd compare the visual of it to vantablack, the newish ultra black filaments paint that's been created. It moved naturally like anyone walking past you now but sharply 'nothing' ..