“Ah, of course. It was the sides which were black. Good morning, Mrs. Smith.—There is a boatman here with a wherry, Watson. We shall take it and cross the river.
“The main thing with people of that sort,” said Holmes, as we sat in the sheets of the wherry, “is never to let them think that their information can be of the slightest importance to you. If you do, they will instantly shut up like an oyster. If you listen to them under protest, as it were, you are very likely to get what you want.”
“Our course now seems pretty clear,” said I.
“What would you do, then?”
“I would engage a launch and go down the river on the track of the Aurora .”
“My dear fellow, it would be a colossal task. She may have touched at any wharf on either side of the stream between here and Greenwich. Below the bridge there is a perfect labyrinth of landing-places for miles. It would take you days and days to exhaust them, if you set about it alone.”
“Employ the police, then.”
“No. I shall probably call Athelney Jones in at the last moment. He is not a bad fellow, and I should not like to do anything which would injure him professionally. But I have a fancy for working it out myself, now that we have gone so far.”
“Could we advertise, then, asking for information from wharfingers?”
“Worse and worse! Our men would know that the chase was hot at their heels, and they would be off out of the country. As it is, they are likely enough to leave, but as long as they think they are perfectly safe they will be in no hurry. Jones’s energy will be of use to us there, for his