As Khalid sprang forward Olga’s ever-ready pistol came out of her belt. She cried to Khalid to get out of the line of fire, but just as she spoke Boris made his last effort, and, taking what aim he could, pulled the trigger. Khalid stopped short and clasped his hand to his right side. Then Olga, with a low cry of fury breaking from her white lips through her clenched teeth, sent a bullet through Boris’s brain just as he was struggling to bring his pistol up again. “Are you hurt, Khalid?” she asked with a deadly fear at her heart as she crossed the deck to where he was standing with his hand still pressed to his side. “Yes,” he gasped. “He has shot me through the lung.” Then he coughed, and Olga saw drops of blood on his black beard and moustache. Without wasting any time in useless words she helped him down into the saloon and set herself at once to examine and dress his wound. The bullet had entered between the fourth and fifth ribs on the right side, drilled a clean hole through the lower lobe of the right lung, and passed out at the back without touching any bone. With perfect rest and quiet there was nothing to prevent recovery from such a wound, but Olga shuddered as she thought of its consequences in their present situation. If Khalid succumbed, as he well might do under the unknown terrors and dangers of the night that was now so near, she would have to choose between killing herself beside him, or, if the rock-chambers of Mount Terror proved a safe asylum, living mateless and alone until she starved to death on the wilderness that the world would be when it had passed through its baptism of fire. She satisfied Khalid’s whispered request for an explanation of Boris’s attempt on their lives by saying that he had probably made himself drunk in an attempt to fortify himself against the terrors that were multiplying around him. Then she went through the ship and in a few minutes came back and said-- “I shall have to take the ship to Mount Terror myself. It was not only Boris, for every man of the crew is dead drunk. Think of them making such brutes of themselves at such a time! “No,” she continued, putting her hand on his shoulder as she saw him make an attempt to rise. “You must not move yet; you will want all your strength when we get there, for you will have to regulate the engines while I am in the conning-tower. As for these animals, we will leave them to their fate.” A couple of hours later she went on deck to see whether Mount Terror, or at anyrate the smoke-crest of Mount Erebus, was in sight, for the _Revenge_ had now been flying almost long enough to have reached the confines of Antarctica. The speed was, however, so great that nothing was distinctly visible. There was only the flaming heaven above and a grey blur beneath, so she went to the engine-room and slowed down to a hundred miles an hour.