and when all was done , the elves sang a lament for the children of hurin , and a great grey stone was set upon the mound , and thereon was carven in runes of doriath : turin turambar dagnir glaurunga and beneath they wrote also : nienor n1niel of the ruin of doriath so ended the tale of turin turambar ; but morgoth did not sleep nor rest from evil , and his dealings with the house of hador were not yet ended .