The territory of Stone Down is a dangerous gorge, recently reclaimed by the Stonestalkers following the Edict of Stone's casting. The destroyed and half-buried buildings embedded in this gorge are the last remnants of one of Azure's former cities. It has since been taken over by the Stonestalkers, a tribe of Beastmen that aggressively guard their claimed territory. Stone Down Gorge connects to one of the few traversable routes leading north, making it a vital connection point in the Stone Sea.
Down the walkway in the southwest (a hidden area there has supplies and a Sigil of Illusion you'll find a pond. You can empty it by moving the boulder with the iron pole or Athletics 59. Right next to the pond is a Sage corpse with Sage's Journal Entry.
To the east of that pond, near the ruined buildings, is a dead body with a charcoal rubbing that contains the Sigil for the Aurora Spire. Another Azurelith harvesting spot is here.