The hidden Elven city of Gondolin is the last great stronghold against Morgoth, the Dark Lord of the First Age. Built in secret and protected by encircling mountains, Gondolin has remained hidden for centuries - but Morgoth seeks it ceaselessly, knowing that its fall would break the last resistance to his domination of Middle-earth. Into this story comes Tuor, a man guided by the sea-god Ulmo on a perilous journey to the hidden city, where he finds love, purpose, and a role in events that will shape the future of Middle-earth. One of the three Great Tales of the Elder Days alongside Beren and Lúthien and The Children of Húrin, presented by Christopher Tolkien from his father's manuscripts in the same evolving-narrative format as its companion volumes.