A big ship sailed into the bay with the British colours flying at her masthead.
They almost shouted with joy at the sight.
"That"s a deuce of a way off," said Harry Girdwood.
"About a mile."
"A mile is a precious good swim," grunted Harry.
"So much the better. These villainous old Turks won"t be suspicious, and a mile isn"t much for either of us, I think. I don"t mind it, and we can answer for Tinker and his prime minister."
"Dat"s so," said Bogey, grinning from ear to ear. "Yah, yah! Me and Tinker swim with Ma.s.sa Harry and Jack on our backs."
At dusk they matured their plan of action.
Tinker could float on the water like a cork, and was the swiftest swimmer of the four.
Tinker was, therefore, lowered as far down as they could manage, and then allowed to drop into the water.
It was a drop!
"Fought dis chile was gwine on dropping for a week, sar," said the plucky young n.i.g.g.e.r, subsequently.
However, once he was on the surface, and got his wind well, he darted through the water like a fish.
They watched his dusky form until they could see him no more.
"Now, Bogey."
"Ready, sar."
He was lowered and dropped the same as Tinker, and speedily was upon the latter"s track.
"Now my turn," said Jack. "I shall go in for a header."
"Don"t," said Harry. "You"d never come up alive if you went down head first from this height."
And Jack was dissuaded from this purpose.
He squeezed his body through the aperture.
"Give me your hand, Harry, while I look over."
His comrade obeyed, and Jack was able to see about him.
Now on his left, not more than ten feet down, was a large doorway, with a flap similar to the doors on the water-side warehouses, in London, from where the stores are lowered and raised from the barges by means of an iron crane.
"I wonder what place that is?" said Jack; "if I could only reach it, my fall would be very considerably broken."
He had a try.
They fastened their two scarves together, and Harry, making himself a secure hold above, lowered Jack, and the latter swinging backwards and forwards twice, dropped the second time fairly on the ledge.
It was a perilous hold.
But Jack was only second to Nero in monkey tricks, and he held on in a most tenacious manner.
Swinging himself up he pushed his way into a dark and gloomy place.
A low vaulted chamber, dimly lighted by a flickering old lamp.
"Where am I now?"
Before he could look further to get an answer to this question, he was startled by the sound of footsteps.
What should he do?
Leap out?
Or should he wait?
He decided to wait.
He crept up into a corner, the darkest he could find, and there, with a beating heart, he awaited the progress of events.
He had not long to wait.
Two dusky forms glided spectrally into the place, one bearing a lamp.
With this, they looked about, and Jack, with a sinking at heart, recognised the two eunuchs again.
"What devilment are they working now?" thought Jack.
They flashed the light just then upon the objects of their search.
Two huge sacks lay upon the floor.
Jack but imperfectly discerned what they were; but a sickening dread stole over him, as the two eunuchs raised one of the sacks from the floor, and bearing it to the window, while its contents writhed and struggled desperately, hurled it out.
A stifled groan.
A shriek.
A splash.
Jack could hear no more.
He was about to dart out from his hiding-place upon those black-hearted wretches, when a third person stepped into the chamber.