“In the name of my first ancestor, then,” she continued, “where may you be from? You are like unto my people, and yet so unlike. You speak my language, and yet I heard you tell Tars Tarkas that you had but learned it recently. All Barsoomians speak the same tongue from the ice-clad south to the ice-clad north, though their written languages differ. Only in the valley Dor, where the river Iss empties into the lost sea of Korus, is there supposed to be a different language spoken, and, except in the legends of our ancestors, there is no record of a Barsoomian returning up the river Iss, from the shores of Korus in the valley of Dor. Do not tell me that you have thus returned! They would kill you horribly anywhere upon the surface of Barsoom if that were true; tell me it is not!”