mayhap what all elves say is true , that those twain hunt now in the forest of orome in valinor , and tinuviel dances on the green swards of nessa and of vana daughters of the gods for ever more ; yet great was the grief of the elves when the guilwarthon went from among them , and being leaderless and lessened of magic their numbers minished ; and many fared away to gondolin , the rumour of whose growing power and glory ran in secret whispers among all the elves .