"Then," said Roger decidedly, "there's just one thing to be done. We'll move the Sun Plant up here, now, while I'm waiting to complete the engine." "The absorber and condenser! Oh, Roger man, the whole crop would be burned to a crisp while you did that! And only you and Gustav to do it, and the team is at Archer's." Roger bit his pipe stem. "There must be a way," he insisted, doggedly. "There's got to be." "Vy not make the vell, first," suggested Gustav who had been a silent auditor to the entire conversation. "If you don't get vater, a gut engine is no gut." "Who's going to dig it?" asked Roger. "If it takes as long to get to water up here as it did at the Plant, you and I would be at it till October. No! I'm going to get help. I don't know how I'm going to get it, but it's going to be done. I could keep twenty men busy here for a month." Charley sighed and Gustav shrugged his shoulders. Roger relighted his pipe and went into a brown study. Gustav waited patiently for several moments, then left to do the evening chores. Charley sat on an empty box beside the pump watching now the stream that flowed over the field and now Roger's half closed eyes. Finally he emptied his pipe and rose. "Didn't Elsa call supper?" he asked. "Some time ago." Charley rose too. "But I didn't want to interrupt. Have you solved your troubles?" "I don't know. But I've thought of something I'm going to try out. Wasn't that camp Felicia went to a permanent one?" "Yes, in a way. The Indians come there again and again. But they won't work, Roger." "Old Rabbit Tail works. Charley, take a little trip with me to-morrow. Let's see if my idea works." "I'd like to, Roger. I haven't been away from sight of this adobe hut but twice in a year. Once, the night we found you, and once, the night you and I--" "I know, poor old girl! Well, let's have a little picnic trip of our own to-morrow. We'll take Peter and some grub--get a dawn start and be back by sundown." "Oh, I'd love it!" cried Charley, looking like Felicia with the sudden flash of joy in her eyes. "I'll put up the best lunch ever. Come along, Roger, do! Elsa will take our heads off." Roger invited Elsa to accompany them on the mysterious trip, but Elsa refused to go. "Dick will be back any day now," she said, "and I'm going to be here when he comes." Charley made no reply to this but Roger frankly shrugged his shoulders. "I feel as if I never wanted to see him again. I'll be here at dawn, Charley. You can meet me at the corral, can't you, so's not to rout the others out too early?" Charley agreed and dawn was just unfolding over the desert when she tied the grub pack to Peter's saddle. She waited for some time, sitting on the rock, her back against the corral, before Roger came. He appeared at last, just as the first rays of the sun shot over the mountains.