Prompt:
In the tumultuous final days of the War of Wrath, Ancalagon the Black, the largest and most fearsome of Morgoth's dragons, soared through the skies of Middle-earth. His shadow enveloped mountains and valleys alike, instilling dread in the hearts of the bravest warriors. The skies roared with the clash of battle as the Valar led their forces against Morgoth’s minions. In a defining moment, Eärendil, guided by the light of a Silmaril, faced Ancalagon in a celestial duel that lit up the dawn sky. After hours of relentless combat, Eärendil prevailed, and Ancalagon fell, his massive form crushing the dark towers of Thangorodrim, signaling the downfall of Morgoth's reign.