"Why attempt to explain the inexplicable?" he replied. "As I have told you before, I am a very old man. I do not know how old I am. I recall no childhood; but recollect only having been always as you see me now and as you saw me first when you were five years old. You, yourself, have aged, though not as much as most men in a corresponding number of years, which may be accounted for by the fact that the same blood runs in our veins; but I have not aged at all. I have discussed the question with a noted Martian scientist, a friend of mine; but his theories are still only theories. However, I am content with the fact--I never age, and I love life and the vigor of youth. "And now as to your natural question as to what brings me to Earth again and in this, to earthly eyes, strange habiliment. We may thank Kar Komak, the bowman of Lothar. It was he who gave me the idea upon which I have been experimenting until at last I have achieved success. As you know I have long possessed the power to cross the void in spirit, but never before have I been able to impart to inanimate things a similar power. Now, however, you see me for the first time precisely as my Martian fellows see me--you see the very short-sword that has tasted the blood of many a savage foeman; the harness with the devices of Helium and the insignia of my rank; the pistol that was presented to me by Tars Tarkas, Jeddak of Thark. "Aside from seeing you, which is my principal reason for being here, and satisfying myself that I can transport inanimate things from Mars to Earth, and therefore animate things if I so desire, I have no purpose. Earth is not for me. My every interest is upon Barsoom--my wife, my children, my work; all are there. I will spend a quiet evening with you and then back to the world I love even better than I love life." As he spoke he dropped into the chair upon the opposite side of the chess table. "You spoke of children," I said. "Have you more than Carthoris?" "A daughter," he replied, "only a little younger than Carthoris, and, barring one, the fairest thing that ever breathed the thin air of dying Mars. Only Dejah Thoris, her mother, could be more beautiful than Tara of Helium." For a moment he fingered the chessmen idly. "We have a game on Mars similar to chess," he said, "very similar. And there is a race there that plays it grimly with men and naked swords. We call the game jetan. It is played on a board like yours, except that there are a hundred squares and we use twenty pieces on each side. I never see it played without thinking of Tara of Helium and what befell her among the chessmen of Barsoom. Would you like to hear her story?"