In The Silmarillion by J. R. R. Tolkien, Anglachel (meaning Iron of the Flaming Star in Sindarin) is a sword smithed by Eöl the Dark Elf. It was one of two swords Eöl forged out of a black meteorite: the other, Anguirel, he kept for himself. Eöl gave this sword to Thingol as payment for staying in his forest, Nan Elmoth, though he did not relish giving it away. Thingol's wife, Melian, prophesied the following:
- "There is malice in this sword. The dark heart of the smith still dwells in it. It will not love the hand it serves, neither will it abide with you long."
Thingol gave the sword in keeping to his subject Beleg. Whenever Beleg took the sword out of its sheath, the sword is said to have sung with gladness.
At one time, Beleg was unbinding the unconscious Túrin, who had been held captive. However, whilst undoing his bonds, the sword slipped or fell and cut Túrin in his foot. Túrin then woke, and not knowing who it was, slew Beleg with Anglachel, a mistake that he mourned for a long time.
Túrin was then given the sword by Gwindor, and Túrin travelled to Nargothrond, Gwindor's place of birth, where the sword was reforged and renamed Gurthang"Iron of Death".
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