Walkthrough by Harry Laudie
Go north and climb down the wall in front of the wheel. In the wheel pit, run to the back for secret #1 and revolver ammo. Climb back up to the starting area. Go south and climb down the wall in front of the wheel. In the wheel pit run to the back to get Uzi ammo and then climb back up. Go through the south-west arch and turn left. Climb the east wall of the archway and go to the middle area. Pick up secret #2 and the Uzi's. Be sure to walk over the whole archway top and then climb back down to the floor.
Go to the south-west and up the steps and through a room with a large closed blue door. Go north to enter an arch to shoot a vase for pistol ammo. Push the block behind the vase to the west into a room. Do not pull it out or the horseman does not appear. A horseman appears so kill him and pick up the Hand of Orion (looks like the Horseman's Gem). Return to the wheel room for now but you will be back to this room later.
Go to the north-west corner and dive into water. Swim north and then east. Pick up a small medipack in the corner and continue to swim north and just follow the tunnel to pull up into a large room with pillars and more water. Dive into the water and swim north. You pass a mirror-like wall with floor levers behind it on the left and a closed gate to the right. Go to the north-west corner and dive into a hole but get a full air supply first. Light a flare and stay near the bottom. You soon see that the part of the floor is darker than another part. Follow the darker floor through the maze to enter into a flooded room. Swim north through an arch and up some stairs to pull up into a tunnel. Run west and down into a lower tunnel. Run south into a tunnel with a lot of alcoves on the right side. In one alcove, pick up secret #3 and flares. Continue to the end and find the two floor levers. First go west into the dark to shoot a vase and pick up Uzi's. Return and use the two floor levers. You get a long flyby of the underwater gate opening and of the area behind it.
Go back through the tunnels, and swim the underwater tunnel again. Get some air and enter the open gate. Swim to the south-east corner and find a ledge and pull up onto it. Jump the ledges to the west and pick up flares. Jump to the next west ledge and get a cut scene of an underwater door opening. The other ledges with a design are deadly. Dive into the water and swim east to find the open door. Swim through the tunnel to pull up into a room. Notice a closed gate needing the gem but something else has to be done before you use it. Go to the south-east corner and pull up into a crawl space. Drop on the other side to use the floor lever and hear a gate opening. Return and enter the open doorway in the south-west corner. Pick up the laser sight and the revolver. You get a cut scene of a vase under the water. Back into the water and pull up onto the ledge in the first room.
Jump west to the next edge. Shoot the vase against the west wall. Then look to the far north corner. You can just make up the side of a vase at the floor bottom. Shoot that vase also just in case. Return to the room to use the Hand of Orion (gem) to open the gate. Pick up the flares and see that a block has dropped. Go inside and shoot the vases for nothing. Use the floor lever and hear some theme music. Back to the water and exit back to the first room. You see a block has risen in front of you. Climb it and you access the central structure. Shoot the vases and get inside the structure. Shoot the vase to the south. Get secret #4 and a large medipack. Shoot all the other vases you see and be sure to walk on their tiles. You have a choice now. You can either end the level now or go for another secret and another artifact.
If you pick up the artifact, you get a cut scene of the room with the blue doors. You see Von Croy pacing the floor and the level ends.
However, do not pick the artifact up and swim back to the wheel room. Go south-west up the steps and through the room with the large blue door. Continue into the next room and get into a crawl space at the north wall. Stand up the end and use the floor lever. You hear a gate opening. Exit and go east into the open gate. Go up the stairs and onto a balcony. Turn east to shoot a vase for secret #5 and a small medipack. You hear a door open. Turn around and the door is on the balcony in front of you. Enter the doorway and enter a room with lava tiles and safe tiles. Turn left to pick up a large medipack. Use pistols and shoot the four vases at the back wall. Shoot the fifth vase on the high back ledge and you see a block rise at the back wall. Go there and climb the block to get to the top ledge. Go east and south to jump the gap. Go to the end and pick up an artifact (called Load). Now return to the wheel room and swim back to the first artifact. Pick up the artifact and you get a cut scene of the room with the blue doors. You see Von Croy pacing the floor and the level ends.