"'Allie! Allie!' his voice, softly appealing, came to me where I squatted, silently guarding the chamber. My eyes wandered around the room, nothing escaping them. Again came Sands' appealing call. I looked at him as he stood beside the couch, arms outstretched. The girl lay perfectly still now, and her face remained buried in her arms as though fearful to look up. Slowly her head turned. From where I squatted, I could see her profile as it turned towards Sands, tears like pearls, streaming down her cheek. I expected to see again her sweet features staring mutely blank as they were when I first beheld her. "Suddenly the girl sat upright and turned her face up to Sands! Her eyes widened in amazement and fright. I watched her closely, temporarily forgetting my own sworn duty to stand guard over the chamber. Would she recognize her lover of forty years ago? I wondered if she really would. Or was she still under the spell of some strange Jovian trance? My blood pounded at my temples in those few seconds of uncertainty. I could imagine her amazement at seeing Sands but I could not comprehend her delay in flying to his embrace if she still loved him. She sat very still, staring up into Sands' luminous green features with their month's growth of beard. Perhaps his radium affliction and his beard had puzzled her I thought. That was true. She did not recognize him immediately as the result. For long minutes she stared at him through glistening tears. "Then with a soft cry Allie Lane literally flew into his arms. Sands squeezed her close to him, his face buried in her tumbled brown hair. A feeling of exultation and of triumph surged through my whole body and I slapped my thigh with joy. I was immensely happy! But my joy was short lived. I always was more or less of a crank and my happiness soon fled before a cloud of gloom that formed sinister thoughts in my brain. "Now that Sands and Allie Lane were together again, how were they to escape from the underground outpost of Jupiter? If we did succeed in finding our way out of the maze of tunnels, how did we expect to traverse Death Valley without water? It was impossible! Better had we all remain hidden far below Death Valley's burning surface than to expose ourselves to the sinister power of Abaris or the terrible fatal heat of the surface! "Meanwhile my attention was drawn again to the two lovers as they stood beside the silken couch. Allie nestled close to the broad, powerful chest of her sweetheart and spoke to him in a low, musical voice. Quickly I glanced around the room trying not to listen to them. I had already a violent feeling of being an intruder on their reunion. * * * * * "'Oh, Robert!' her voice, tense with both fright and joy. 'How did you ever find me--why did you risk your life to come here in the midst of these terrible creatures? I'm so afraid!'