Spectropia: Or Surprising Spectral Illusions Showing Ghosts Everywhere and of Any Colour (Glow-in-the-dark edition)

Originally published in 1864, Spectropia is a science-based, time-honored guide to seeing ghosts, ghouls, spirits, skeletons, and witches—no graveyard loitering necessary.

Simply stare at the sixteen color plates inside this book for twenty seconds and you will see colorful spooky specters, life-sized or colossal. Whether a true believer or a skeptic, anyone can experience the paranorm...