He shoved me to the ground. Gutierrez grinned, and withdrew a trifle. Jetta avoided meeting my gaze. "Have some coffee," De Boer offered. "Alcohol is not good for you. Now say: have you any suggestions on how I can safely ransom you?" It seemed that Jetta was holding her breath with anxiety. But I answered with an appearance of ready eagerness. "Yes. I have. I can arrange it with complete safety to you, if you give me a chance." "You've got your chance. Speak out." "You promise you will return me alive? Not hurt me?" "De duvel--yes! You have my promise. But your plan had better be very good." "It is." I told it carefully. The details of it grew with my words. Jetta joined in it. But, most of all, it did indeed sound feasible. "But it must be done at once," I urged. "The weather is right; to-night it will be dark; overcast; not much wind. Don't you think so?" He sent Gutierrez to the cave's instrument room to read the weather forecast instruments. My guess was right. "To-night then," I said. "If we linger, it only gives Hanley more time to plan trickery." "Let us try and raise him now," Jetta suggested. The Dutchman, Hans, had joined us. He too, seemed to think my ideas were good. Except for the guards at the cave entrance, all the other bandits were far gone in drink. With Hans and Gutierrez, we went to the instrument room to call Hanley. As we crossed the cave, with Hans and De Boer walking ahead together, De Boer spoke louder than he realized, and the words came back to me. "Not so bad, Hans? We will use him--but I am not a fool. I'll send him back dead, not alive! A little knife-thrust, just at the end! Safest for us, eh, Hans?" CHAPTER XVII _Within the Black Sack_ We left the bandit stronghold just after nightfall that same day. There were five of us on the X-flyer. Jetta and De Boer, Hans and Gutierrez and myself. The negotiations with Hanley had come through satisfactorily; to De Boer, certainly, for he was in a triumphant mood as they cast off the aero and we rose over the mist-hung depths. It was part of my plan, this meager manning of the bandit ship. But it was mechanically practical: there was only Hans needed at the controls for this short-time flight: with De Boer plotting his course, working out his last details--and with Gutierrez to guard me. De Boer had been quite willing to take no other men--and most of them were too far gone in their cups to be of much use. I never have fathomed De Boer's final purpose. He promised Jetta now that when I was successfully ransomed he would proceed to Cape Town by comfortable night flights and marry her. It pleased Gutierrez and Hans, for they wanted none of their comrades. The treasure was still on the flyer. The ransom gold would be added to it. I think that De Boer, Gutierrez and Hans planned never to return to their band. Why, when the treasure divided so nicely among three, break it up to enrich a hundred?