I knew it. Not by any of my bodily senses. A knowledge, which suddenly I realized that I had. A moment, and then I was conscious of her voice! No sound; my ears heard nothing. Yet my brain was aware of familiar tones. I recognized them, as one can remember how a loved voice sounded when last it was heard. But this was no memory. A present actuality; it rang soundless in my brain. Elza's voice. Anxious! Frightened! At first only the confused _tone_ of it. Then the consciousness of words. Two reiterated words: _"Danger! Jac! Danger! Jac!"_ I waited no longer, but rushed to Georg and Maida--beautiful Maida in her robe of sleep with her white hair tumbling about her. Georg half awake--yet almost at once he could understand me, and explain. Natural, instinctive telepathy! It had not occurred to me. I had never bothered to develop telepathy; and indeed with any degree of fluency--or even of surety of reception--the phenomenon is difficult to perfect. Yet, as I knew, with a loved one absent upon whom one's thoughts dwell constantly--in time of stress telepathy is occasionally automatically established. It was so in Georg and Maida's case, back there in the Mountain Station on Earth. Telepathy was the explanation of Georg's mysterious actions as he stood there before the sending mirrors, crossed the room in confusion, and like one in a dream leaped from the window to be seized by Tarrano's spies. Maida had been abducted a moment before. Georg's brain became aware of it. Her danger, the appeal she sent to him. So it now seemed to be from Elza to me. Georg, out of bed now beside me, urged me to greater efforts of concentration, that I might understand what message Elza was sending. _"Elza! Elza dear! Where are you? What is it?"_ I murmured the words to myself as with all my power, I thought them over and over, flinging out the thoughts like radio waves into the night. Mysterious vibrations! In an instant, from here--everywhere in the universe. Who knows their character? Their speed? The speed of light a laggard perhaps beside the flash of a thought! Waves of my thoughts, speeding through the night, with only one receiving station in all the universe! Would Elza's brain capture them? _"Elza dear! Where are you? What is it?"_ _"Jac! Danger! Jac! Danger!"_ It was very clear. The words rang in my head. But always only those two. And then at last--it may have been an hour later--other words: _"Death! The black cloud of death! You can see it coming! See it coming! Death! To you Jac! To all of you in the city!"_ We rushed to the casement. The broad lagoon before the palace lay like a mirror tinted red and purple. Beyond it, palms and the outlines of houses lay dark against the star-strewn sky.