The Astral Clocktower is a location in Bloodborne's The Old Hunters dlc.
- The Celestial Dial is dropped by Maria, and is the only way to unlock the secret of the Nightmare.
- The floor of the Astral Clocktower's chamber is filled with petals of lumenflowers, they likely came from the Lumenwood Garden.
- The Astral Clocktower itself has 13 Caryll Runes etched on the edges. The one that opens the door is the Deep Sea rune.
- If we use the Great Deep Sea as the starting event, the anti-clock wise order are : Great Deep Sea , Beast's Embrace, Beast, Hunter, unnamed rune, Radiance, Communion, Moon, Eye, Guidance, Formless Oedon, Oedon Writhe, Lake.