This Magazine Is Haunted #13 (1957)

This is an anthology issue containing multiple horror stories. "Drums" follows warriors pursuing a sorcerer who uses magical drums to create illusions and drive men mad, culminating in the carving of a duplicate idol to break the spell. "The Man Who Changed Bodies" concerns a wealthy financier named D'Agost who is haunted by a supernatural entity and experiences nightmares; a doctor later reveals that the man's deep delusions suggest he has somehow shifted into a body from another time, resulting in amnesia from the shock of the displacement.