It was some time before the German airmen could rise from the ground and evade the British fighting formations. In the meantime a rain of heavy projectiles from the fleet was destroying all that was destroyable of the harbour and works of Zeebrugge. With the aid of glasses huge clouds of smoke and sand could be seen rising into the air almost every second. Objects discernible one minute had disappeared when the smoke cloud of bursting shells had moved to another point of concentration a short time later. When at last the enemy's planes, in isolated ones and twos, succeeded in hovering over the fleet the surface of the sea was almost instantly broken by great spouts of white water, at first far away, then nearer, and the battle commenced in earnest. A vast cloud of smoke now hung like a black curtain between the fleet and the shore. The M.L.'s were emitting their smoke screen to cover the bombarding ships. Shells splashed into the sea all around. The noise and vibration of the air seemed to bruise the senses, and lurid flashes came from the smoking monitors. It was at this stage of the bombardment that the curious and unexpected happened. A white wave raced along the surface towards a monitor. It was too big for the wake of a torpedo and quite unlike the periscope of a submarine. The small, quick-firing guns of all the ships within range were trained on it and the sea around was ploughed up with shell. The white wave swerved to avoid the tornado of shot, but continued to make direct for the hull of the great floating fort at a considerable speed. Then, as it drew _very_ near to its objective, a shell went home and the sea was rent by the force of a gigantic explosion, eclipsing that of any known weapon of sea warfare. It was, however, soon discovered that the mysterious wave came from a fast torpedo-shaped boat which was evidently being controlled by electric impulses from a shore wireless station some twelve to fourteen miles distant, the necessary information regarding direction of attack being transmitted by means of wireless signals from a seaplane hovering overhead, the abnormal force of the explosion being due to the heavy charge of high explosive which such a craft was able to carry in her bow, so arranged as to fire on striking the object of attack. With the failure of this ingenious but costly method of attack precautions were at once taken against a repetition and the seaplane hovering inconveniently overhead was driven off. The bombardment was carried on for the allotted span, by which time the shore batteries that still remained in action had found the range, notwithstanding the heavy smoke screen emitted by the M.L.'s. "Heavies" were ploughing up the water unpleasantly close to the monitors, one of which was struck, though but little damaged.