"Nay," answered Rolla, and proceeded to explain, in the wrong order, as a child might, by relating first the crossing of the ridge, the flight from the bees, the "masters'" cruel method of dealing with Corrus and Dulnop, and finally the matter of the fire itself, the real cause of the whole affair. Somat was intelligent enough to fill in such details as Rolla omitted. "Ye did right, and acted like the brave girl ye are!" he exclaimed, when Rolla had finished. However, he did not fully appreciate what she had meant by "the winged masters," and not until she pointed out some bees and asked if, on this part of the planet, such were the rulers of the humans, that the man grasped the bitter irony of it all. "What! Those tiny insects rule thy lives!" It took him some time to comprehend the deadly nature of their stings, and the irresistible power of concerted effort; but in the end he commented: "'Tis not so strange, now that I think on it. Mayhap life is only a matter of chance, anyway." Presently he felt that he understood the Sanusian situation. He fell silent; and Rolla, after waiting as long as her patience would allow, finally put the question temporarily uppermost in her mind: "It is true that I have crossed the edge of the world. And yet, I understand it not at all. Can ye explain the nature of this strange world we live upon, Somat?" There was infinite respect in the way Rolla used his name; had she known a word to indicate human infallibility, such as "your majesty," she would have used it. "There is a saying among our people that the world be round. How can this be so?" "Yet it is true," answered Somat, "although ye must know that it be not round like a fruit or a pebble. No more is it flat, like this," indicating the lid of the stove, near which they sat. "Instead, 'tis shaped thus"--and he took from his finger a plain gold band, like an ordinary wedding ring--"the world is shaped like that!" Rolla examined the ring with vast curiosity. She had never seen the like before, and was quite as much interested in the metal as in the thing it illustrated. Fortunately the band was so worn that both edges were nearly sharp, thus corresponding with the knifelike ridge over which she had crawled. "Now," Somat went on, "ye and your people live on the inner face of the world," indicating the surface next his skin, "while I and my kind live on the outer face. Were it not for the difficulties of making the trip, we should have found you out ere this." Rolla sat for a long time with the ring in her hand, pondering the great fact she had just learned. And meanwhile, back on the earth, four excited citizens were discussing this latest discovery. "An annular world!" exclaimed the doctor, his eyes sparkling delightedly. "It confirms the nebular hypothesis!" "How so?" Smith wanted to know.