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.
The History of The Lord of the Rings
"The History of The Lord of the Rings" reveals much of the slow, aggregative nature of Tolkien’s creativity. As Christopher Tolkien noted of the first two volumes, Tolkien had eventually brought the story up to Rivendell, but still “without any clear conception of what lay before him”. He also noted how, on the way, his father could get caught up in a “spider’s web of argumentation” - what Tom Shippey described as getting “bogged down in sometimes strikingly unnecessary webs of minor causation”. Thus (for example) the character eventually known as Peregrin (Pippin) Took was, in a series of rewriting and of deleted adventures, variously known as Odo, Frodo, Folco, Faramond, Peregrin, Hamilcar, Fredegar, and Olo – the figures also being Boffins and Bolgers, as well as Tooks.