barley water, at which the parched men could slake their thirst. What little space remained was fully occupied by the gun's crew, who, stripped to their singlets, were coolly speculating as to the chances of "losing the number of their mess".

Strangely enough, no one imagined that he was to be one of the unlucky ones; it is always his pal or some of his shipmates. It is an optimism that is shared equally alike by the Tommies in the trenches and the Jack Tars at their battle-stations.

Craning his neck, the Sub looked through the gun-port. It was an operation that required no small amount of manoeuvring, for the aperture was barely sufficient to allow the chase of the gun to protrude, while the armoured mounting left very little space between its face and the curved wall of the casemate.

The Hammerer was third ship of the port column, for the older battleships were steering in double column, line ahead. Preceding the squadron were the mine-sweepers, covered on either flank by strong patrols of destroyers.

Ten or twelve miles to the north could be discerned a mountainous and rocky coast terminating abruptly to the west'ard. Part of the highland was in Europe, part in Asia, but where the line of demarcation existed the Sub was unable to determine. Somewhere in that wall of rock lay the entrance to the Dardanelles, but distance rendered the position of the hostile straits invisible.

Away on the port hand lay the island of Imbros. Under its lee could be seen the misty outlines of the Queen Elisabeth, Agamemnon, Irresistible, and the French battleship Gaulois, ready to open a long-range bombardment of the Turkish batteries.

"Think the beggars will fight when they see this little lot?" asked Midshipman Sefton.

"Why not?" asked the Sub.

"I hope they will," continued the midshipman. "Especially after all this trouble. The Turk is a funny chap. See how he crumpled up against the rest of the Balkan States in 1912."

"On the other hand, the Turkish infantryman in '78 was reckoned one of the best 'stickers' in Europe," said Dick. "Under European officers these fellows will fight pretty gamely, and from all accounts there's a good leavening of German officers and artillerymen in these forts. Anyhow, we've got to get through. We've done it before, you know."

"Yes," admitted Sefton; "in the early nineteenth century, with a fleet of wooden walls. Duckworth did a grand thing then. In '78, when Hornby went through, the case was different. The Turks didn't open fire. Perhaps they funked it, and that's what makes me think they'll hesitate at the last moment."

Even as the midshipman spoke there came a peculiar screech that sounded almost above the armoured roof of the casemate.

The two young officers exchanged glances.

It was the first shell from the battery of Sedd-ul-Bahr.

CHAPTER III

The Demolition Party

A double crash announced that the leading battleship of the British squadron had opened fire with her foremost 12-inch guns. In two minutes the action had become general, the whole of the British and French pre-Dreadnoughts engaging with their principal armament, for as yet the range was too great for the 6-inch guns and smaller weapons to be trained upon the distant defences.

Ahead, the mine-sweepers, "straddled" by the hail of projectiles from Sedd-ul-Bahr and Kum Kale, as well as from mobile batteries cunningly concealed in difficult ground, proceeded with slow and grim determination. All across them the sea was churned by the ricochetting shells, while ever and anon a terrific waterspout accompanied by a dull roar showed that they were making good work in clearing away the hostile mines.

The Turks, in spite of the huge 12-inch projectiles that hailed incessantly upon the forts, stood to their guns with fanatical bravery. Tons of brickwork and masonry would be hurled high in the air, after taking with them the mangled remains of the Ottoman gunners and up-ending the Turkish weapon as easily as if it were a mere drain-pipe. Yet a few minutes later the defenders would bring up a field-piece and blaze away across the ruins at the nearest of the British mine-sweepers.

"Port 6-inch battery to fire," came the order.

Almost simultaneously the six secondary armament guns added their quota of death and destruction to the slower crash of the heavier weapons in the barbettes.

The Hammerer and her consorts were rapidly closing the shore, taking advantage of the already seriously damaged forts.

It was by no means a one-sided engagement. Shells from the Turkish defences were ricochetting all around the British warships or expending themselves harmlessly against the armoured plating. Other projectiles tore through the unprotected sides and upper works. Well it was that orders had been given out not to man the 12-pounder quick-firers on the upper deck. Had these weapons been used the casualties here must have been very heavy, for the light battery resembled a scrap-iron store.

Suddenly the men serving the gun in the casemate stopped their rapid yet deliberate work. A hostile shell had penetrated the 6-inch side armour almost under the casemate and had burst close to the lower part of the foremast. The shock well-nigh capsized the Sub, and almost caused the man at the ammunition hoist to drop the hundred-pound shell that he was in the act of transferring to the breech of the weapon. Suffocating fumes eddied through the ammunition hoist into the confined space. In the dim light men were gasping for breath, expecting every moment to find the magazine beneath their feet blown up.

"Hoist out of action, sir," reported one of the men, as he threw the contents of a bucket of water down the choked tube. Although everything of a supposedly inflammable nature had been got rid of, the heat generated by the explosion had been sufficient to start a fire, and the seat of the conflagration was between the armoured floor of the casemate and the magazine below the water-line.

"That's done it," ejaculated Dick dejectedly. It was not on account of the danger, for the men remained calmly within the casemate, trusting to the fire-party to extinguish the flames that were perilously close to the magazine. He was deploring the fact that the jamming of the ammunition hoist had deprived his gun of its supply of shells. The weapon was as much out of action as if the entire gun's crew had been annihilated. It seemed so humiliating to be inactive.

"Number one 6-inch, why are you not firing?" inquired an officer in the conning-tower through one of the voice tubes. There was a tinge of anxiety in his voice. He had noticed the sudden cessation of fire from that particular weapon, and it looked ominous.

"Ammunition hoist damaged, sir," replied the Sub.

"Any casualties?"

"No, sir."

"Then stand by."

Dick heard the whistle replaced in the tube as the officer completed his enquiries. Then hard-a-port the Hammerer described a semicircle, in order to bring her as yet unengaged starboard battery into action.

By this time the Turkish reply was but a feeble one. Pounded by the direct fire from the pre-Dreadnoughts; shattered by the long-range high-angle fire of the Queen Elizabeth and the Invincible, the forts were little better than mounds of rubbish.

Already the British warships had penetrated more than two miles up the formidable Straits, the mine-sweepers performing their difficult task with the utmost coolness and bravery. Night was coming on. All that could be done was to make sure of the complete reduction of the southernmost forts, and continue the sweeping operations as a prelude to a farther advance on the morrow.

Two British seaplanes, hovering at a height of nearly a thousand feet above the hostile positions, reported by wireless that the Turks were abandoning their shattered forts. The opportunity