Elliott O’Donnell 
Twenty Years’ Experience as a Ghost Hunter [EPUB ebook] 

I mentioned in one of my former works that I believe many of the figures we pass by in the streets are not men and women like ourselves, but phantasms—phantasms of the living, that is to say, spirit projections of people consciously or unconsciously thinking of being where we see them—phantasms of the dead, and impersonating neutrarians. Mingling with the crowds in the parks and gliding in and out the trees, I have often seen people with the pallor of corpses; I have followed them, and they have unaccountably vanished. I believe Hyde Park, particularly the northern side, to be as full of ghosts as any spot in London, and I have heard many strange tales from the outcasts, the tattered and torn brigade, who have slept all night under its trees and bushes.