Dark Souls Patch 1.05 Walkthrough Part 33 - New Londo Ruins & Opening the Floodgates

Make way past the ghosts to Ingward (in red robe) and talk to him to obtain the Key to the Seal. If you have already talked to Frampt, I believe you have to kill him to get the key. Use this key to access the floodgates control. Then explore the lower ruins that leads to the fog wall to the Abyss. Good area to farm titanite chunks and slabs (rare).