The ghost of Hamlet’s father haunts him as do the ghosts of Europe that haunt Valery’s writing. It is safe to surmise that ghosts are a symbol of uncertainty.
The Ghost of Old Hamlet haunts the castle of Elsinore. Old Hamlet was murdered by his brother, and he wanders the night, expecting to have chance to speak with his son. One he coulf, he orders Hamlet to revenge his murder .
However, the ghost in Hamlet's story is sometimes believed to be an evil spirit who has taken on Old Hamlet’s shape to wreak havoc on Denmark.