The head and shoulders of a Prussian appeared. Setley stepped forward to receive his prisoner, when with a curse the treacherous Hun hurled a bomb full at the face of the subaltern. With outstretched hand Archer intercepted the flying missile and hurled it whence it came, where it exploded with a hollow vibration. "Good thing I'm a cricketer, sir," he remarked. "That ought to have settled the swine's hash. There's no trusting a Prussian." "Don't," ordered Ralph, as the non-com. was about to investigate. "We'll run no unnecessary risks, but the blighter must be accounted for. Where's a smoke-bomb?" The Prussian officer was still alive. The mention of the word "smoke-bomb" made him find his tongue. He had very strong objections to being driven from his shelter like a rat from its hole. It was he who had ordered the liquid fire apparatus to be brought to play upon the bogged Tank, and now, when threatened with efficacious but comparatively humane measures, he asserted that the British soldiers were taking a mean advantage. "You've put yourself out of court," exclaimed Setley. "For your treachery you deserve to be exterminated; but we'll give you another chance. Come out and we'll give you quarter. Any attempt at your low-down games and you'll be shot down." The Hun hesitated. Having no regard for his own plighted word, he had doubts concerning the British officer's pledge. "I will not surrender make," he shouted almost spluttering in his rage. "This a magazine is. If you a smoke-bomb throw den I fire der powder an' blow you and your landship to pieces." "We'll risk that," replied Ralph coolly. The bomb was tossed into the mouth of the dug-out. Nauseating, pungent fumes wafted out. For thirty seconds there was no sign of the Prussian. With their revolvers ready, Ralph and the sergeant crouched by the side of the flattened trench. Suddenly a grey-coated figure dashed through the asphyxiating smoke. Temporarily blinded by the vapour, well nigh suffocated, the Prussian floundered into the open air, until his bent head came into violent contact with the side of the Tank. Like a felled ox he dropped upon the ground. "Blessed if he isn't the very image of Little Willie, sir," remarked the sergeant, turning the Prussian over with his boot. "He certainly looks a mental degenerate," agreed Ralph. "Here, stop those men. Let them carry him in." A batch of thirty prisoners, under the escort of an imperturbable Tommy, came trudging across the open. They were Saxons; perhaps that accounted for the rough handling they accorded the Prussian officer. "I've seen the last of that gentleman, I hope," remarked Setley. "You've found a rope? And ladders, too, I see. Look alive there." Danvers and his men were soon extricated from the pitfall. With them was a German colonel, a tall, sparely built man, who was trembling violently in every limb.