The Arachno Queen's Nest is a location in Xenoblade Chronicles. It is located on the second floor of Tephra Cave. When Shulk arrives here from Vilia Lake, he finds Reyn surrounded by spiders. He manages to save him by learning and using Monado Shield. They then proceed to fight the Arachno Queen. There is a passage leading from the nest to Kneecap Hill.
- Firework Geldesia (quest-exclusive)