Pumpkin Rock

The rocky part stood out arrogantly on the plain below, a cliff of gray rock and pockmarked with patches of orange moss; but this was nothing compared to the hideous shape that the rock had where a promontory towered over all the other rocks: it vaguely resembled a large pumpkin, two cavities seemed disturbing eyes that observed the travelers, while a large horizontal crack had the appearance of a voracious mouth. All this could have been just a strange joke of nature, if it were not for the fact that everything was permeated by an anguishing mystical light. What were those rocks hiding?