"... the arising of the King of the Sea was terrible, as a mounting wave that strides to the land, with dark helm foam-crested and raiment of mail shimmering from silver down into shadows of green." "At times he will come unseen to the shores of Middle-earth, and there make music upon his great horns, the Ulumuri, that are wrought of white shell; and those to whom that music comes hear it ever after in their hearts, and longing for the sea never leaves them again." — J.R.R. Tolkien, The Silmarillion