"No," said Mr. Kemp tauntingly, "you'd sooner be a nark.

"You're a nark for that fellow Crewe.

"As a nark," said Mr. Kemp, with a sneer.

"How can any one earn a respectable honest living by being a nark?" asked Mr. Kemp contemptuously.

So it looks to me as if he has turned nark and Crewe has put him on to watch you.

"'Yus,' agreed an evicted tenant of doubtful occupation, 'some bloomin' nark has giv 'em away.