"Beautiful," returned Markby, "nothing could be better. Already have Harkaway and his hard-knuckled companion, Girdwood, been seen in Lenoir's society. But before the day is over they will be seen in the Caveaux themselves, where proofs of their guilt will spring up hydra-headed from the very ground."

"And what will it end in?" asked the other, eagerly.

"The galleys," returned Markby, with fierce intensity.

"Beautiful!" exclaimed the man in the blouse, with unfeigned admiration. "You always must have been a precious sight downier than I thought. Why, your old man was no fool. He made a brown or two floating his coffins, but he was a guileless pup compared to you."

"You keep watch," said Markby, hurriedly; "and be ready for any emergency. It is a bold stroke we are playing for. Lenoir is a desperate ruffian, and the least mistake in the business would be something which I for one don't care to contemplate."

"Lenoir be blowed," replied the man in the blouse; "the only people I care about if we should go and make a mess of the job is, firstly—Jack Harkaway, and secondly, his pal Harry Girdwood, which a harder fist than his I have seldom received on my unlucky snuffer-tray."

And he was gone.

CHAPTER XCI.

MARKBY'S NEXT STEP—THE PREFECT OF POLICE—THE PLOT THICKENS—A GLIMPSE OF MARKBY'S PURPOSE—A DOUBLE TRAITOR—DEADLY PERIL.

Markby went off muttering to himself.