War of Wrath
But the Silmaril escaped them again and was borne by Eärendil into the West. That Silmaril was lost to the Sons of Fëanor, but two more remained inside the crown of Morgoth. At the end of the War of Wrath the two surviving oath-takers, Maedhros and Maglor, stole the two Silmarils from the camp of the victorious Hosts of Valinor. However, due to the terrible deeds committed by the brothers in their retrieval of the Silmarils they found they could not handle the Silmarils without enduring searing pain. The two brothers parted: in their anguish Maedhros threw himself and his Silmaril into a fiery chasm, while Maglor cast his Silmaril into the sea and would spend an eternity wandering the shore, lamenting his fate.