Journey into Mystery / Thor Vol 1 #12

Plot

A thief meets a girl who works as a maid at a castle and convinces her to help him rob the place so that they can acquire enough money to return to America together. He doesn't love her and is just manipulating her, but she says she loves him and agrees to leave the door open late at night. The thief encounters the lord of the castle and draws his gun on him. The girl offers to hide him in the castle tower and he finds himself locked in. What the man doesn't realize is that all the castle occupants, including the girl, are ghosts.