The ghost of U.S. novelist Ernest Hemingway is terrifying Cuban employees at his former estate-turned-museum outside Havana, according to witnesses who claim to have encountered the phantom.

One former employee told how the author's ghost used to emerge when there was a full moon and pursue him down a track at the Finca Vigia estate, Cuban news agency Prensa Latina reported Friday.That witness described the ghost as "a tall, red-faced man, walking slowly, and dressed with bermudas, a light, baggy shirt, and leather sandals."

Another employee told how on dark nights Hemingway's ghost would whisper in his ear, while a third left the estate's main key hanging on a palm-tree and fled to his home after spotting the deceased author's image.

The three employees have resigned.