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The Gatehouse is a location in Ocean of Storms, Moon. It contained a massive chain that links to an unknown mechanism.
Two years after the Red War, the Gatehouse still stands, though it, like most of the Hive's older structures on the Moon, now appears more desolate. The chain also appears to have been removed.
Brya's remains can be found in the gatehouse.
The Gatehouse seen in Destiny 2.