Then the most alert of the ghouls gave the signal for all to advance, and Carter followed the loping three out of the forest of monoliths and into the dark noisome streets of that awful city whose rounded towers of cyclopean stone soared up beyond the sight. Silently they shambled over that rough rock pavement, hearing with disgust the abominable muffled snortings from great black doorways which marked the slumber of the Gugs. Apprehensive of the ending of the rest hour, the ghouls set a somewhat rapid pace; but even so the journey was no brief one, for distances in that town of giants are on a great scale. At last, however, they came to a somewhat open space before a tower even vaster than the rest; above whose colossal doorway was fixed a monstrous symbol in bas-relief which made one shudder without knowing its meaning. This was the central tower with the sign of Koth, and those huge stone steps just visible through the dusk within were the beginning of the great flight leading to upper dreamland and the enchanted wood.