We know those who are dead cannot reappear until the end of the World. In the gospel of Luke 16:19-31 we read a dead rich man being tormented in hell for the multitude of his sins begging Abraham the prophet to send poor Lazarus to go back to earth but Abraham the prophet said nobody can go there...and, they have Moses law and the prophets if they don't listen to them nobody from the heaven can help them
So the question we need to ponder is whom do we believe the gospel of Luke 16:19-31 or do we believe familiar spirits?