There it boomed out again, thundering full against Siabod on the left; and Siabod tossed it on to Moel Meirch, who answered from all her clefts and peaks with a long confused battle-growl, and then tossed it across to Aran; and Aran, with one dull, bluff report from her flat cliff, to nearer Lliwedd; till, worn out with the long bufferings of that giant ring, it sank and died on Gwynnant far below but ere it died, another and another thunder-crash burst, sharper and nearer every time, to hurry round the hills after the one which roared before it.