a last sly dart of amber shone all gleaming where the troop had gone and chased them as they topped a hill , to fire the crest with clement skill ; whereon the final tones of dusk set heaving an inclement busk of banded croaks in synchrony that eulogised this harmony : `` the sun had set and ris untold for many years before the skald did learn to tilt his head to write while mulling in the steeped sunlight ; to take his eye from off his quill and set the words that echo still in ancient lays of ogam stone that spoke of light , yet light outshone .