Ras Thavas' investigation revealed nothing. I think as it progressed that he became gradually more and more imbued with a growing suspicion that I might know more about the disappearance of Valla Dia than my attitude indicated, for I presently became aware of a delicately concealed espionage. Up to this time I had been able to smuggle food to Valla Dia every night, after Ras Thavas had retired to his quarters. Then, on one occasion, I suddenly became subconsciously aware that I was being followed, and instead of going to the vaults I went to the office, where I added some observations to my report upon a case I had handled that day. Returning to my room I hummed a few bars from "Over There," that the suggestion of my unconcern might be accentuated. From the moment that I quit my quarters until I returned to them I was sure that eyes had been watching my every move. What was I to do? Valla Dia must have food, without it she would die; and were I to be followed to her hiding place while taking it to her, she would die; Ras Thavas would see to that.

Half the night I lay awake, racking my brains for some solution to the problem.

There seemed only one way-I must elude the spies. If I could do this but one single time I could carry out the balance of a plan that had occurred to me, and which was, I thought, the only one feasible that might eventually lead to the resurrection of Valla Dia in her own body. The way was long, the risks great; but I was young, in love and utterly reckless of consequences in so far as they concerned me; it was Valla Dia's happiness alone that I could not risk too greatly, other than under dire stress. Well, the stress existed and I must risk that even as I risked my life.

My plan was formulated and I lay awake upon my sleeping silks and furs in the darkness of my room, awaiting the time when I might put it into execution. My window, which was upon the third floor, overlooked the walled enclosure, upon the scarlet sward of which I had made my first bow to Barsoom. Across the open casement I had watched Cluros, the farther moon, take his slow deliberate way.

He had already set. Behind him, Thuria, his elusive mistress, fled through the heavens. In five xats (about 15 minutes) she would set; and then for about three and three quarters Earth hours the heavens would be dark, except for the stars.

In the corridor, perhaps, lurked those watchful eyes. I prayed God that they might not be elsewhere as Thuria sank at last beneath the horizon and I swung to my window ledge, in my hand a long rope fabricated from braided strips torn from my sleeping silks while I had awaited the setting of the moons. One end I had fastened to a heavy sorapus bench which I had drawn close to the window. I dropped the free end of the rope and started my descent. My Earthly muscles, untried in such endeavours, I had not trusted to the task of carrying me to my window ledge in a single leap, when I should be returning. I felt that they would, but I did not know; and too much depended upon the success of my venture to risk any unnecessary chance of failure. And so I had prepared the rope.

Whether I was being observed I did not know. I must go on as though none were spying upon me. In less then four hours Thuria would return (just before the sudden Barsoomian dawn) and in the interval I must reach Valla Dia, persuade her of the necessity of my plan and carry out its details, returning to my chamber before Thuria could disclose me to any accidental observer. I carried my weapons with me and in my heart was unbending determination to slay whoever might cross my path and recognize me during the course of my errand, however innocent of evil intent against me he might be.

The night was quiet except for the usual distant sounds that I had heard ever since I had been here-sounds that I had interpreted as the cries of savage beasts. Once I had asked Ras Thavas about them, but he had been in ill humor and had ignored my question. I reached the ground quickly and without hesitation moved directly to the nearest entrance of the building, having previously searched out and determined upon the route I would follow to the vault. No one was visible and I was confident, when at last I reached the doorway, that I had come through undetected. Valla Dia was so happy to see me again that it almost brought the tears to my eyes.

"I thought that something had happened to you," she cried, "for I knew that you would not remain away so long of your own volition."

I told her of my conviction that I was being watched and that it would not be possible for me longer to bring food to her without incurring almost certain detection, which would spell immediate death for her.

"There is a single alternative," I said, "and that I dread even to suggest and would not were there any other way. You must be securely hidden for a long time, until Ras Thavas' suspicions have been allayed; for as long as he has me watched I cannot possibly carry out the plans I have formulated for your eventual release, the restoration of your own body and your return to Duhor."

"Your will shall be my law, Vad Varo."

I shook my head. "It will be harder for you than you imagine."

"What is the way?" she asked.

I pointed, to the ersite-topped table. "You must pass again though that ordeal that I may hide you away in this vault until the time is ripe for the carrying out of my plans. Can you endure it?"

She smiled. "Why not?" she asked. "It is only sleep-if it lasts for ever I shall be no wiser."

I was surprised that she did not shrink from the idea, but I was very glad since I knew that it was the only way that we had a chance for success. Without my help she disposed herself upon the ersite slab.

"I am ready, Vad Varo," she said, bravely; "but first promise me that you will take no risks in this mad venture. You cannot succeed. When I close my eyes I know that it will be for the last time if my resurrection depends upon the successful outcome of the maddest venture that ever man conceived; yet I am happy, because I know that it is inspired by the greatest friendship with which any mortal woman has ever been blessed."

As she talked I had been adjusting the tubes and now I stood beside her with my finger upon the starting button of the motor.

"Good-bye, Vad Varo," she whispered.

"Not good-bye, Valla Dia, but only a sweet sleep for what to you will be the briefest instant. You will seem but to close your eyes and open them again. As you see me now, I shall be standing here beside you as though I never had departed from you. As I am the last that you look upon to-night before you close your eyes, so shall I be the first that you shall look upon as you open them on that new and beautiful morning; but you shall not again look forth through the eyes of Xaxa, but from the limpid depths of your own beautiful orbs."

She smiled and shook her head. Two tears formed beneath her lids. I pressed her hand in mine and touched the button.