Down towards the east and the Pool of London a forest of funnels and masts was dimly outlined against the sinister sky. Huge barges, each steered by a single man at the end of a pair of giant oars, lumbered and swirled down-stream at all angles. Occasionally a tug snorted busily past, flashing its red and green signals and dragging an unwieldy tail of barges in its wake. Then a Margate passenger steamer, its electric lights gleaming from every porthole, swerved round to anchor, with its load of two thousand fatigued excursionists. Over everything brooded an air of mystery - a spirit and feeling of strangeness, remoteness, and the inexplicable. As the broad flat little boat bobbed its way under the shadow of enormous hulks, beneath stretched hawsers, and past buoys covered with green slime, Racksole could scarcely believe that he was in the very heart of London - the most prosaic city in the world. He had a queer idea that almost anything might happen in this seeming waste of waters at this weird hour of ten o'clock. It appeared incredible to him that only a mile or two away people were sitting in theatres applauding farces, and that at Cannon Street Station, a few yards off, other people were calmly taking the train to various highly respectable suburbs whose names he was gradually learning. He had the uplifting sensation of being in another world which comes to us sometimes amid surroundings violently different from our usual surroundings. The most ordinary noises - of men calling, of a chain running through a slot, of a distant siren - translated themselves to his ears into terrible and haunting sounds, full of portentous significance. He looked over the side of the boat into the brown water, and asked himself what frightful secrets lay hidden in its depth. Then he put his hand into his hip-pocket and touched the stock of his Colt revolver - that familiar substance comforted him.
The oarsmen had instructions to drop slowly down to the Pool, as the wide reach below the Tower is called. These two men had not been previously informed of the precise object of the expedition, but now that they were safely afloat Hazell judged it expedient to give them some notion of it. 'We expect to come across a rather suspicious steam launch,' he said. 'My friend here is very anxious to get a sight of her, and until he has seen her nothing definite can be done.'
'What sort of a craft is she, sir?' asked the stroke oar, a fat-faced man who seemed absolutely incapable of any serious exertion.
'I don't know,' Racksole replied; 'but as near as I can judge, she's about sixty feet in length, and painted black. I fancy I shall recognize her when I see her.'
'Not much to go by, that,' exclaimed the other man curtly. But he said no more. He, as well as his mate, had received from Theodore Racksole one English sovereign as a kind of preliminary fee, and an English sovereign will do a lot towards silencing the natural sarcastic tendencies and free speech of a Thames waterman.
'There's one thing I noticed,' said Racksole suddenly, 'and I forgot to tell you of it, Mr Hazell. Her screw seemed to move with a rather irregular, lame sort of beat.'
Both watermen burst into a laugh.
'Oh,' said the fat rower, 'I know what you're after, sir - it's Jack Everett's launch, commonly called "Squirm". She's got a four-bladed propeller, and one blade is broken off short.'
'Ay, that's it, sure enough,' agreed the man in the bows. 'And if it's her you want, I seed her lying up against Cherry Gardens Pier this very morning.'
'Let us go to Cherry Gardens Pier by all means, as soon as possible,'
Racksole said, and the boat swung across stream and then began to creep down by the right bank, feeling its way past wharves, many of which, even at that hour, were still busy with their cranes, that descended empty into the bellies of ships and came up full. As the two watermen gingerly manoeuvred the boat on the ebbing tide, Hazell explained to the millionaire that the 'Squirm' was one of the most notorious craft on the river. It appeared that when anyone had a nefarious or underhand scheme afoot which necessitated river work Everett's launch was always available for a suitable monetary consideration. The 'Squirm' had got itself into a thousand scrapes, and out of those scrapes again with safety, if not precisely with honour. The river police kept a watchful eye on it, and the chief marvel about the whole thing was that old Everett, the owner, had never yet been seriously compromised in any illegal escapade. Not once had the officer of the law been able to prove anything definite against the proprietor of the 'Squirm', though several of its quondam hirers were at that very moment in various of Her Majesty's prisons throughout the country. Latterly, however, the launch, with its damaged propeller, which Everett consistently refused to have repaired, had acquired an evil reputation, even among evil-doers, and this fraternity had gradually come to abandon it for less easily recognizable craft.
'Your friend, Mr Tom Jackson,' said Hazell to Racksole, 'committed an error of discretion when he hired the "Squirm". Ascoundrel of his experience and calibre ought certainly to have known better than that. You cannot fail to get a clue now.'
By this time the boat was approaching Cherry Gardens Pier, but unfortunately a thin night-fog had swept over the river, and objects could not be discerned with any clearness beyond a distance of thirty yards. As the Customs boat scraped down past the pier all its occupants strained eyes for a glimpse of the mysterious launch, but nothing could be seen of it. The boat continued to float idly down-stream, the men resting on their oars.
Then they narrowly escaped bumping a large Norwegian sailing vessel at anchor with her stem pointing down-stream. This ship they passed on the port side. Just as they got clear of her bowsprit the fat man cried out excitedly, 'There's her nose!' and he put the boat about and began to pull back against the tide. And surely the missing 'Squirm' was comfortably anchored on the starboard quarter of the Norwegian ship, hidden neatly between the ship and the shore. The men pulled very quietly alongside.