The Mothman Prophecies, the late John Keel’s first-person account of a paranormal investigation in West Virginia, may not answer the question of exactly what the Mothman phenomenon was, but it remains one of the best accounts of the shadowy world of paranormal investigation itself. (Skip the movie, except for laughs.)

Here, from the Fate magazine website, is a short article that Keel wrote some years later, discussing the the vortex of strangeness and paranoia that sucked him in back in 1967.