Continue your journey with Prima's Dark Souls 2 Guide and Walkthrough!
Head down the stairs and through the door at the end. Continue down the path and break the boxes at the end to find another poison enemy. Kill it, then open the chest to find two Wilted Dusk Herbs and a Skeptic's Spice. Go back in the opposite direction and through the doorway, then down the stairs beyond.
Take down the lizard enemy at the bottom, then pick up the Large Soul of a Nameless Soldier in the corner. Continue into the next large room, take down the knight inside, then open the chest on the left (it's difficult to see in the water) to find an Elizabeth Mushroom. Watch out for the lizard enemies that hide in the water as you make your way to the far right side of the room where a Flame Butterfly and Twinkling Titanite await in the water.
Move to the end of the room, but before you open the door, move around to the far side of the structure to find a chest. Open the chest to discover three Crimson Waters. Open the door and speak to the Milfanito inside to obtain a Smooth & Silky Stone, then go out the other door and continue down the path.
Once again, be mindful of the lizardmen hiding in the water. Take them down before you progress to avoid being ambushed. As you near the end of the path, another knight attacks. Take it down, clear away the lizardmen, then pick up the two Souls of a Lost Undead, Skeptic's Spice, three Torches and the Large Soul of a Proud Knight around the middle platform.
Press onward and take down the other two knights, then head to the far left corner to find a chest that holds a Dragon Charm. Continue into the tunnel at the end, then veer off to the left and take out the lizardmen in the next room to the left. Open the coffer inside to find a Twinkling Twilight and three Smooth & Silky Stones. Keep moving through the tunnel and kill the poison enemy ahead, then enter the mist door.
Take down the lizardman and sorcerer ahead, then enter the structure in the middle of the room to find a bonfire. Light it, then continue toward the end of the room to find another sorcerer and more lizardmen. Continue through the area to face off against three more sorcerers and several more lizard men, as well as a larger enemy hiding in the water off to the right.
Veer off to the right path, and near the end, there's a Crimson Water to the right of the main path, and a Estus Flask Shard to the left of the main path. Just beyond the shard is a chest that holds a Sunlight Blade. Collect the items, then return to the main path and head through the door in the structure ahead. Pick up the Large Soul of a Proud Knight and an Old Radiant Lifegem, then head through the next door.
Kill the knight and sorcerer to the far left, as well as the sorcerers and lizardmen guarding the mist door ahead. Head up the ramp on the far left to find three Alluring Skulls at the top. Hug the wall and creep around to the right side of the mist door structure to find the Soul of a Hero and a Divine Blessing. Continue into the mist door and through the next tunnel.
There are four poison enemies ahead. Be careful of their poisonous clouds and take them down. Light the bonfire ahead to the left, then finish off the remaining poison creatures ahead. At the end of the passage another sorcerer awaits in the open area. Take it down, then proceed into the area to find one more in the middle, toward the end, plus a lizardman and another sorcerer off to the left. Head through the structure at the end to find a mist door that leads into a boss battle against the Demon of Song.