The rebel gunners wasted no time in formalities. As the _Fortuna_ came into the line of fire, two great bulges of smoke sprang from the embrasures; the nine-inch guns of the seaward battery were discharged. Both shells flew high and roared through the masts of the warship, who increased her speed to seven knots and stood on her course followed by her consorts. As each gun of the forts came to bear, it was fired, but the aim was bad, and the projectiles ricochetted merrily over the water, raising great fountains of spray, and it was not until the leading ship had arrived at the entrance of the channel, that she was struck. A heavy shell, charged with a high explosive, crashed into the port-battery of the _Fortuna_, killing and wounding nearly sixty men, as well as dismounting two out of the four guns. This roused the huge machine; the forward turret revolved and, turning swiftly towards the fort, brought its great twin guns to bear. Their discharge was almost simultaneous, and the whole ship staggered with the violence of the recoil. Both shells struck the fort and exploded on impact, smashing the masonry to splinters and throwing heaps of earth into the air; but the harm done was slight. Safe in their bomb-proofs, the rebel gunners were exposed only to the danger of missiles entering the embrasures; while such guns as fired from _barbette_ mountings were visible only at the moment of discharge. Nevertheless the great ship began literally to spout flame in all directions, and her numerous quick-firing guns searched for the embrasures, sprinkling their small shells with prodigal rapidity. Several of these penetrated, and the rebels began to lose men. As the ships advanced, the cross-fire grew hotter, and each in succession replied furiously. The cannonade became tremendous, the loud explosions of the heavy guns being almost drowned by the incessant rattle of the quick firers; the waters of the harbour were spotted all over with great spouts of foam, while the clear air showed the white smoke-puffs of the bursting shells. The main battery of the _Fortuna_ was completely silenced. A second shell had exploded with a horrid slaughter, and the surviving sailors had fled from the scene to the armoured parts of the vessel; nor could their officers induce them to return to that fearful shambles, where the fragments of their comrades lay crushed between masses of senseless iron. The sides of the ships were scored and torn all over, and the copious streams of water from the scuppers attested the energy of the pumps. The funnel of the _Fortuna_ had been shot off almost level with the deck, and the clouds of black smoke floating across her quarters drove the gunners from the stern-turret and from the after-guns. Broken, dismantled, crowded with dead and dying, her vitals were still uninjured, and her captain, in the conning tower, feeling that she still answered the helm, rejoiced in his good fortune and held on his course.