Presently three other ghasts hopped out to join their fellow, and a ghoul glibbered softly at Carter that their absence of battle-scars was a bad sign. It proved that they had not fought the Gug sentry at all, but had merely slipped past him as he slept, so that their strength and savagery were still unimpaired and would remain so till they had found and disposed of a victim. It was very unpleasant to see those filthy and disproportioned animals which soon numbered about fifteen, grubbing about and making their kangaroo leaps in the grey twilight where titan towers and monoliths arose, but it was still more unpleasant when they spoke among themselves in the coughing gutturals of ghasts. And yet, horrible as they were, they were not so horrible as what presently came out of the cave after them with disconcerting suddenness.