Spirits- Through Locked Door

“It’s humbug still!” said Scrooge. “I won’t believe it.”  His colour changed though, when, without a pause, it came on through the heavy door, and passed into the room before his eyes. Upon its coming in, the dying flame leaped up, as though it cried, “I know him; Marley’s Ghost!” and fell again.
...

Scrooge closed the window, and examined the door by which the Ghost had entered. It was double-locked, as he had locked it with his own hands, and the bolts were undisturbed. He tried to say “Humbug!” but stopped at the first syllable.

- A Christmas Carol, Stave I