The new danger could be treated lightly provided the seaplane was able to carry on and fall in with her parent ship. The torpedo-boats were not within range of their guns, while the speed of the seaplane was more than double that of the swiftest of her pursuers, even in her damaged condition. Should the chase be maintained for any length of time there was a chance of the British destroyers cutting off some, if not all, of the hostile craft. "Wireless the 'Hippo,'" wrote Barcroft, receiving the laconic reply "Can't." The delicate apparatus had been put out of action when the seaplane staggered under the force of the explosion. "Then that's done it," thought Billy, pulling off his gloves and running his finger over a slight, almost imperceptible, dent in the petrol tank. The engine was missing badly, and although able to note the fact by observation the pilot guessed rightly that the precious fluid was leaking. Holding his fingers to his nostrils he could faintly smell the volatile fluid. The petrol was leaking, and evaporating as fast as it came in contact with the air. The application of a piece of soap to the minute fracture temporarily remedied matters, but the mischief was already done. The petrol was almost exhausted. By this time the German torpedo-boats were almost out of sight, mere dots upon the horizon, their position indicated by long trailing clouds of black smoke. Some uncanny knowledge must have urged the commanders of the various boats to hang on to what appeared to be a fruitless chase. To them the seaplane would be almost invisible unless they kept her under observation by means of their binoculars. In that case they must have noticed the little aircraft gradually dropping towards the surface of the sea. Anxiously Barcroft scanned the expanse of water in front--a clear field of sea bounded by an unbroken horizon. The seaplane carriers and their strong escort had steamed homewards, taking it for granted that one at least of the raiders on Cuxhaven had been brought down by the heavy hostile fire. The attempt had been only moderately successful. The fog that had baffled Barcroft had enveloped the rest of the British seaplanes before they had time to get properly to work. Altogether a dozen bombs had been dropped upon the naval port, before the thick bank of haze enveloped them and hid their desired object from their view. Greeted by a tremendous fire from the German Archibalds, the raiders returned in safety; for the Huns, baffled by the thick weather, could only fire at random. With a few minor damages the airmen regained their respective parent ships, and then it was discovered that Barcroft and Kirkwood had not returned. None of the other flying men had sighted their machine after the first few minutes of the outward flight. It was therefore concluded that the two men were lost, and notwithstanding Fuller's request to make a search, the "Hippodrome" and her consorts steamed westward.