I expected these long plains to change into mountain regions, and in fact, as the Nautilus was executing certain turns, I noticed that the southerly horizon was blocked by a high wall that seemed to close off every exit.
Ello me hizo pensar que las montañas iban a suceder pronto a las largas llanuras, y, en efecto, al evolucionar el Nautilus, vi el horizonte meridional clausurado por una alta muralla que parecía cerrar toda salida.