Sting (Middle-earth)
Sting has the magical ability to detect orcs or goblins nearby, glowing blue in their presence, as it did when the Fellowship encountered orcs in the mines of Moria. Tolkien establishes this as a common property of First Age Elf blades, particularly those forged in Gondolin. Sting is also exceptionally sharp. Bilbo manages to thrust it without effort deep into a wooden beam at Rivendell. Frodo also wounds a troll in Moria, after Boromir notches his own sword with his attempt. Sam uses Sting to cut through the giant spider Shelob's strong webs with ease, and also wound the spider, driving it away from the paralyzed Frodo.
One Ring
The One Ring is an artefact that appears as the central plot element in J. R. R. Tolkien's "The Lord of the Rings" (1954–55). It is described in an earlier story, "The Hobbit" (1937), as a magic ring of invisibility. In the sequel, "The Lord of the Rings", Tolkien ascribes to the Ring a darker character, with malevolent power going far beyond conferring invisibility: it was created by Sauron the Dark Lord as part of his design to win dominion over Middle-earth. "The Lord of the Rings" concerns the quest to destroy the Ring to keep Sauron from fulfilling his design.