Head to the center of this area. Look around and you will notice a Sentry Eye guarding something, directly in front of you. Avoid it and head left to activate the checkpoint. Run up the ramp, and follow the path around. Move out to the platform in the center of the room, and then glide across to the platform where the Air Reaver recharge is. Recharge the Air Reaver, and glide back across to the center platform. Head straight, and follow the snow-covered path. At the end of the path, use the Air Reaver to shoot a projectile to destroy the cracked wall in front of you. Drop down onto the frozen lake, and head left. Jump up onto the ledge, use the Soul Reaver to defeat the two Sarafan Warriors here, and then use the Air Reaver to activate the Air Reaver plinth located on the ground at one end of the ledge. Glide up to the next platform, kill the Sarafan Warrior, and use the Dark Reaver font. Now, glide back down to the frozen lake, and reenter the passageway you had just emerged from. Head back to the center of the room, and shoot the Sentry Eye with the Dark Reaver. Run forward and take the urn. Now return to the center of the room. Use the urn to scoop some blood out of the pool in the middle of the room. Now, go back up the ramp, and follow the path to the center of the upper level. Pour the blood from the urn into the pool located here. After a short scene, a ramp will appear in front of you. Follow this path until the next scene plays. Head down the ramp, and use the Light Reaver font. Now move up the ramp next to the font, and head to your right. Turn, and face the gap. Jump and glide over to the platform across from you. Now, move out of this platform, towards a door with a face and a red circle on it. Turn to face left, and look around until you see two pink icons suspended on chains. Move around until you line them up, and shoot at them with the Light Reaver. Assuming you have them lined up correctly, you will see a short scene, and the bridge will drop down. Now, head back to that side of the room, cross the bridge, and defeat the enemy to get the Red Shield. Use it on the door. Now, head back across the bridge, and turn right at the first intersection. Locate an urn near the wall, pick it up, and fill it with blood at the nearby pool. Now, head back across the bridge, through the doorway you opened with the Red Shield. Head straight, and use the urn to fill the empty pool. After the scene, head left and use the Air Reaver font. Now head back to the pool you just filled, and go up the stairs in front of it. Use the Air Reaver to unblock the path, where the cracked wall is. Continue down the path, and use the Air Reaver to break the next wall. Now, drop back down to the bottom level, activate the Air Reaver plinth on the floor, and use the Light Reaver font. Use the Air plinth's updrift to head back up, and head through the first door you broke open. find the metal fence in this area, and stand to the left of it. From this position, find the two pink orbs, on chains like the ones you shot earlier. Line them up and shoot them with the Light Reaver to activate the next bridge. Across this bridge is another empty pool, so take an urn and head back down to the last blood pool you filled up. Fill up the urn, and head back up, across the bridge, and fill this blood pool up. After the scene, head across the new bridge and use the Dark Reaver font. Head back, past the blood pool, and across the bridge, to the intersection. Turn right, and shoot the Sentry Eye with the Dark Reaver. Run past it, murder the enemy, take the Red Shield, and quickly run back before the Sentry Eye rolls over. If the eye does roll over, just jump down to the ground level before it has a chance to shoot you. In any case, head back to the sealed Red Door it's on the second level, to the right, before the Sentry Eye. Use the Red Shield to unseal the door. In this room there will be another empty blood pool, so, head back, find an urn, fill it with blood at the last pool you filled, bring it back here, and fill this pool with blood. Now, head back down to the Air Reaver font. Use it, and activate the nearby Air Reaver plinth. Use the updrift to get back up to the 2nd level you'll land right by the blood pool you just filled. Now, walk up the stairs, and door right. Walk forward a little bit, and turn right it's a gap between two "doors" on the inner wall. Look around and you'll see a gold disc with the Air Reaver symbol on it. Use the Air Reaver to destroy this disc. Now, drop down to the ground level and use the Light Reaver font. Use the Air Reaver plinths to head back up to the top level, and shoot the two pink orbs that were behind the gold Air Reaver disc don't forget to line the orbs up, or they won't lower the bridge. Now, turn left and head farther down this hall until you encounter a door with a Red Shield on it. Turn right, walk forward a bit, and turn left. There is a half bridge here. A piece of walkway on either side sticks out, with a gap in the middle. High jump, and glide across this. Head left, and kill the enemy with the Red Shield. Now, head left again towards the Red Shield door, and use the Red Shield to open it. Now, turn around and head back through the room where you fought the Red Shield enemy. Head straight down this hall, and turn right just past where you glided across. You'll notice two pink orbs suspended, one of them is swinging. Use the Light Reaver to shoot these. Time the shot so that they're lined up, and you'll drop the final bridge down. Now, head back to the area where you walked up the stairs to the third level. Head down the other hallway, and you'll encounter another Red Door. Face left, and glide to the ledge on the other side of the door. Fight the enemy here to get another Red Shield. Note that there is an empty blood pool at the end of this room. Turn around, and use the Red Shield to open the door. Now, find an urn, fill it with blood from the last blood fountain you filled, and fill the empty fountain. Now, find another urn, fill it with blood from the pool you just filled, and head across the bridge that just formed. Follow the path until you reach the next empty pool. Head up the newly formed stairs, and use the Light Reaver to open the door. There will be a long scene between Raziel and Janos Audron. Then you will go to the fire forge.