"How far have we got to go now?" he said.

"Oh, a matter of nine miles yet."

"And how long will it take you?"

"About one hour and a quarter, with the tide running at such a pace as it is. There's some wind, too, and what there is, is all with us, so we cut along favourably. What are they doing away yonder, Bill?"

"Where?" said Bill.

"Right in our wake, there. Oh, they are getting up a sail. I'll be hanged if they ain't, and pulling away besides! Why, what a hurry they must be in, to be sure, to get down the river. I never knew them do that before."

Todd looked along the surface of the water, and he saw the police-boat coming along at such a rate, that the spray was tossed up in the air before her prow in millions of white particles.

A puff of smoke came from her side, and a slight sharp report rung upon the morning air. A musket or a pistol had been discharged on board of her.

"What's the meaning of that, Bill?"

"I can tell you," said Todd, sharply, before Bill had done moving his head from side to side, which was a habit of his preparatory to replying to any very intricate question. "I can tell you easily."