The Silmarilli were three perfect jewels, fashioned by Feanor, most gifted of the Elves, and within them was imprisoned the last Light of the Two Trees of Valinor. When the first Dark Lord, Morgoth, stole the jewels and set them within an iron crown in the impenetrable fortress of Angband, Feanor and his kindred took up arms against the great Enemy and waged a long and terrible war to recover them.