History of Festering Halls

The Festering Halls are a private area of the New Pacific Arcology on Titan, taken over by the Hive, with Fallen also present. Destinypedia lists three story visits: in the Red War to retrieve a Golden Age CPU with Cabal intelligence; after the death of Cayde-6, for his caches and repair parts for the Ace of Spades (Ace in the Hole); and in Season of Arrivals to gather technology for Sloane.