The Chasm Nail (unofficial name), also known as the Spiritstone, is a large nail-like crystal in The Chasm: Underground Mines. A fragment known as the Wishstone was discovered in Stony Halls, and the effect it had on the miners who came in contact with it prompted the Liyue Qixing to close off The Chasm entirely.
In the World Quest Wherefore Did the Spiritstone Descend?, the Traveler purifies the large crystal, which summon the Ruin Serpent Haftvad the Worm from the depths. Later into the fight, Yelan shoots the nail to drop it to the ground to destroy the creature, impacting the platform below and changing the nail's elevation.
- There is a Luxurious Chest on top of the nail.
- The nail may be the "Needle of Retribution" mentioned by the Shadowy Husk Roneth.
- The room is referred to as "The Court of Pillars".