When Elsa stepped out of the companionway the next morning she winced and shut her eyes. The whole arc of heaven seemed hung with fire-opals; east, west, north and south, whichever way she looked, there was dazzling iridescence. The long flowing swells ran into the very sky, for there was visible no horizon. Gold-leaf and opals, thought Elsa. What a wonderful world! What a versatile mistress was nature! Never two days alike, never two human beings; animate and inanimate, all things were singular. She paused at the rail and glanced down the rusty black side of the ship and watched the thread of frothing water that clutched futilely at the red water-line. Never two living things alike, in all the millions and millions swarming the globe. What a marvel! Even though this man Warrington and Arthur looked alike, they were not so. In heart and mind they were as different as two days. She began her usual walk, and in passing the smoke-room door on the port side she met Warrington coming out. How deep-set his eyes were! He was about to go on, but she looked straight into his eyes, and he stopped. She laughed, and held out her hand. "I really believe you were going to snub me." "Then you haven't given me up?" "Never mind what I have or have not done. Walk with me. I am going to talk plainly to you. If what I say is distasteful, don't hesitate to interrupt me. You interest me, partly because you act like a boy, partly because you are a man." "I haven't any manners." "They need shaking up and readjusting. I have just been musing over a remarkable thing, that no two objects are alike. Even the most accurate machinery can not produce two nails without variation. So it is with humans. You look so like the man I know back home that it is impossible not to ponder over you." She smiled into his face. "Why should nature produce two persons who are mistaken for each other, and yet give them two souls, two intellects, totally different?" "I have often wondered." "Is nature experimenting, or is she slyly playing a trick on humanity?" "Let us call it a trick; by all means, let us call it that." "Your tone . . ." "Yes, yes," impatiently; "you are going to say that it sounds bitter. But why should another man have a face like mine, when we have nothing in common? What right has he to look like me?" "It is a puzzle," Elsa admitted.