Quenta Silmarillion: The History of the Silmarils, Chapter 17: Of the Coming of Men into the West and Chapter 18: Of the Ruin of Beleriand and the Fall of Fingolfin Summary

At Men's first appearance, Melkor corrupts them with darkness, and Men move west to avoid the dark. Felagund accidentally encounters Men and abides with them, playing music and teaching them wisdom, in return for which they are loyal to him. Eventually, Felagund returns home to his people, and Beor joins him. King Thingol refuses to allow Men to enter Doriath. Some Men have dissensions with the Elves and return east. Morgoth plots against Men, ordering the Orcs to attack Halad and his men. Halad and his son die, but...