he found himself straining to catch all the myriad sounds that whispered through the dark caves of ulgo-the moist trickle of water , the dusty slither of dislodged pebbles slowly running down a shallow incline , and the mournful sighing of air coming down from the surface through minute fissures in the rock.belgarath stopped and lifted the smoky torch that filled the passageway with flickering orange light and leaping shadows .