"It's all right, mates," announced a petty officer, who was making his way aft through the battery. "The Admiral has just signalled. We are to carry on without the Sappho."

"The ball's opened," exclaimed several voices, when at 1.43 a.m. the sound of a furious cannonade was borne to the ears of the Vindictive's company.

Unlike previous operations there was in this no preliminary bombardment. For several nights past Ostend had been left severely alone by our monitors and bombing planes. This had the result of lulling Fritz into a state of false security, and in consequence the took-outs were taking things easy.

But now, at a pre-arranged signal, hell was let loose over Ostend. From the air large bombing machines rained their deadly missiles upon the batteries and land-approaches to the town. From seaward the monitors, some with 17-inch guns, opened a furious and accurate bombardment, while from the battle line in Flanders heavy siege-guns pounded the hostile batteries on the left flank of the defences.

Almost immediately after the opening of the bombardment patches of local fog enveloped the approaching flotilla, while the artificial smoke-screen set up by the coastal motor-boats, although protecting the Vindictive from direct fire, helped to render her navigation a difficult matter.

Through the night mists dull flashes showed that the British destroyers were standing in to engage the batteries, while the Huns, in a frenzied sort of way, concentrated most of their guns on a continuous barrage fire across the entrance to the harbour.

It was through this deadly hail of projectiles, large and small, that the Vindictive was literally compelled to feel her way. As long as she remained in the smoke-screen she was fairly immune from hostile fire, but directly she drew near the shore she would be the target of hundreds of guns.

Peering through a gun-port, which had been additionally protected by walls of sandbags, Seton noticed a white light showing faintly through the drifting smoke. It was the calcium light placed at certain intervals by the British to enable the Vindictive to fix her position, thus countering the ruse on the part of the Huns that had succeeded too well in the abortive attack on St. George's Day—the removal of the recognized navigation buoys.

For a little more than ten minutes the Vindictive held on a course that ought to have brought her off the entrance to the harbour. Anxiously those responsible for navigating her kept a sharp look-out, in the hope of sighting the now familiar piers. Then, as the entrance was obviously missed, the ship altered course to west'ard, keeping parallel to the shore and maintaining a speed of only nine knots.

After a while orders were given to alter course sixteen points to starboard, which meant that the ship would retrace her course and steer eastwards. Again the elusive harbour was missed, and once more a course was shaped to the westward.