The doors will close behind you unless in spectral, leaving you in an empty hallway. Head down and use what ever to kill the guard in front of the door. Pick up the shield, which will be floating near you and place it on the door to open it. Proceed down the hallway, and then shift to the Spectral Plane to pass through the gate blocking your path. Pass through this room then head right until you find a Blue Portal. Shift back to the Material Realm. Head back to the gate that you passed through, and climb up the wall on the left side of the room. There will be a short scene with Raziel. Head up the stairs, and kill the enemy at the top with the Soul Reaver. Now, glide across the room to the pillar with the platform on top. Now, Glide across to the platform with the stairs, in front of the pillar. There will be a short scene, while Raziel looks around this room. The room contains mirrors, which you must turn to open the doors located around it room. Drop down, and turn the mirror until it opens the room on the right. Go down this hallway, and at the end, Shift to the Spectral Plane to pass through the grate. You should end up in a large room with a tree like branch, holding a platform, in the middle. Locate the Blue Portal and Shift back to the Material Realm. Climb one of the Climbing Walls located at the North and South ends of the room and Glide out to this platform. Now, shift to the Spectral Plane. The room will twist, and the Platform you are on will rise up, so that you can glide across to the hallway in front of you. Once across, stand on the Blue Portal, and Shift back to the Material Plane. Use the Soul Reaver to defeat the guard, and then pick up the shield, which is floating near you. Use it to open the nearby doorway. Proceed down this hall, and then use the Soul Reaver to shoot open the Ceiling, which is over the mirror. Grab and Drag the sparkling pillar to the center of the room. Then turn the mirror to face it. If you did this correctly, there will be a small scene showing the shadow cast by the pillar. Now, jump on top of the fallen pillar piece to the right of the mirror. High jump to the top of the pillar, and glide across to the open passage. There will be a short cut scene. Pick up the small mirror, which is held on the platform. Now drop down and head out towards the main room. When you approach the door with the mirror symbol on it, it will now open for you. Now, head on back to the main mirror room. Walk into the room and the door will close behind you. Head to the back of the room, and place the mirror on the holder, which resembles the one you removed it from. Now, go and turn the large mirror until it opens the room on the left. It will open a door guarded by a gate on the left side. Shift to Spectral Realm, and pass through the gate. Find the Blue Portal, shift back to the Material Realm, and find the Climbing Wall. Climb it, and head back towards the mirror you passed after coming through the gate. Turn the mirror by the gate towards the mirror in the main room face it forward. As you approach the ledge, there will be a pillar, which can be moved. Drag it to the center, and it will cast a shadow you can walk on. Walk out to the center platform, using this shadow. Use the Soul Reaver to shoot a projectile at the glowing spot on the ceiling in this room its over the mirror that's on the platform. Once this opens, turn the mirror until a passageway opens. High jump and head down this passage. Move the sundial to the right until the light shines down the hole, hitting the small mirror you placed. There will be a cut scene, and the large blue crystal in the main room will ignite the Soul Reaver forge. There will be a short scene, and Raziel will shove the Soul Reaver forge. You will now posses the Dark Reaver, and your life gauge will increase. Now, shove the Dark Reaver into the door behind Raziel, and there will be a scene where Raziel explains the elemental fonts around Nosgoth. Now, head towards the far back door, and shove the Dark Reaver into it. Shove the Dark Reaver into the last Soul Reaver door, activate the checkpoint, and scene between Raziel and Vorador unless you went in spectral then you can't hear there long boring speeches with out the code for all bonus material.