Quenta Silmarillion: The History of the Silmarils, Chapter 5: Of Eldamar and the Princes of the Eldalie and Chapter 6: Of Feanor and the Unchaining of Melkor Summary

Ulmo takes the Eldarto Valinor on an island, half of which breaks off, becoming the Isle of Balar. The Teleri remain in Middle-earth ruled by Olwe. The Teleri become enamored of the seas. Elwe and Melian return to his people. The Teleri beg Ulmo to stay their voyage, so he fastens the island to the foundations of the sea, creating Tol Eressea, the Lonely Island. A gap is made in the great walls of Pelori for the Vanyar and Noldor to see the stars. The Elves erect a high hill, Tuna, and build a city...