As has been said, the Llangaron came rushing on, distancing everything, even the torpedo-boats. If, before she was obliged to lower her cylinder, she could get near enough to the almost stationary repeller to take part in the attack on her, she would then be content to slacken speed and let the crabs nibble awhile at her stern.

Two of the latest constructed and largest crabs, Q and R, headed at full speed to meet the Llangaron, who, as she came on, opened the ball by sending a "rattler" in the shape of a five-hundred-pound shot into the ribs of the repeller, then at least four miles distant, and immediately after began firing her dynamite guns, which were of limited range at the roofs of the advancing crabs.

There were some on board the repeller who, at the moment the great shot struck her, with a ringing and clangour of steel springs, such as never was heard before, wished that in her former state of existence she had been some other vessel than the Tallapoosa.

But every spring sprang back to its place as the great mass of iron glanced off into the sea. The dynamite bombs flew over the tops of the crabs, whose rapid motions and slightly exposed surfaces gave little chance for accurate aim, and in a short time they were too close to the Llangaron for this class of gun to be used upon them.

As the crabs came nearer, the Llangaron lowered the great steel cylinder which hung across her stern, until it lay almost entirely under water, and abaft of her rudder and propeller-blades. She now moved slowly through the water, and her men greeted the advancing crabs with yells of defiance, and a shower of shot from machine guns.

The character of the new defence which had been fitted to the Llangaron was known to the Syndicate, and the directors of the two new crabs understood the heavy piece of work which lay before them. But their plans of action had been well considered, and they made straight for the stern of the British ship.

It was, of course, impossible to endeavour to grasp that great cylinder with its rounded ends; their forceps would slip from any portion of its smooth surface on which they should endeavour to lay hold, and no such attempt was made. Keeping near the cylinder, one at each end of it, the two moved slowly after the Llangaron, apparently discouraged.

In a short time, however, it was perceived by those on board the ship that a change had taken place in the appearance of the crabs; the visible portion of their backs was growing larger and larger; they were rising in the water. Their mailed roofs became visible from end to end, and the crowd of observers looking down from the ship were amazed to see what large vessels they were.

Higher and higher the crabs arose, their powerful air-pumps working at their greatest capacity, until their ponderous pincers became visible above the water. Then into the minds of the officers of the Llangaron flashed the true object of this uprising, which to the crew had seemed an intention on the part of the sea-devils to clamber on board.

If the cylinder were left in its present position the crab might seize the chains by which it was suspended, while if it were raised it would cease to be a defence. Notwithstanding this latter contingency, the order was quickly given to raise the cylinder; but before the hoisting engine had been set in motion, Crab Q thrust forward her forceps over the top of the cylinder and held it down. Another thrust, and the iron jaws had grasped one of the two ponderous chains by which the cylinder was suspended.