in that moment huan leaped from the thicket upon the back of the wolf , and they fell together fighting bitterly ; and no battle of wolf and hound has been like to it , for in the baying of huan was heard the voice of the horns of orome and the wrath of the valar , but in the howls of carcharoth was the hate of morgoth and malice crueller than teeth of steel ; and the rocks were rent by their clamour and fell from on high and choked the falls of esgalduin .