For half a minute he looked steadfastly at the approaching destroyers, then he gave an order to a man standing by the diminutive mast. Promptly the sailor hoisted the Black Cross Ensign, but whether as a token of defiance or otherwise the British officers were unable to decide. But they were not long left in ignorance. "You are a little too hasty in your surmise, Mr. Englishman," sneered the kapitan-leutnant. "You will yet sample the joys of a German prison. These are two of our torpedo-boats." CHAPTER XVII THE MIDDLE WATCH A DULL, reverberating crash roused Flight-sub-lieutenant Barcroft from his temporary bunk on board H.M. torpedo-boat destroyer "Audax." "Eight bells," midnight, had just gone--silently, for the destroyer was ploughing through the waves at break-neck speed, without

