The little man’s eyes sparkled as he spoke, and he was evidently in a state of suppressed exultation at having scored a point against his colleague.

“Come here,” he said, bustling back into the room, the atmosphere of which felt clearer since the removal of its ghastly inmate. “Now, stand there!”

He struck a match on his boot and held it up against the wall.

“Look at that!” he said, triumphantly.

I have remarked that the paper had fallen away in parts. In this particular corner of the room a large piece had peeled off, leaving a yellow square of coarse plastering. Across this bare space there was scrawled in bloodred letters a single word⁠—

Rache