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164 barely discernible, the one to the extreme left as you face them from the mouth of the river is Anoroc, where I rule the tribe of Anoroc."

"But how am I to find the Mountains of the Clouds?" I asked.

"Men say that they are visible from half Pellucidar," he replied.

"How large is Pellucidar?" I asked, wondering what sort of theory these primitive men had concerning the form and substance of their world.

"The Mahars say it is round, like the inside of a tola shell," he answered, "but that is ridiculous, since, were it true, we should fall back were we to travel far in any direction, and all the waters of Pellucidar would run to one spot and drown us. No, Pellucidar is quite flat and extends no man knows how far in all directions. At the edges, so my ancestors have reported and handed down to me, is a great wall that prevents the earth and waters from escaping over into the burning sea whereon Pellucidar floats; but I never have been so far