(Note - Just before the level loads, you have the option of choosing between Snow Heavy or Snow Light. You can also select your secondary weapon to start with, although you can change it any time from your PDA.)

In the cut scene, Lara reaches Jan Mayen Island. She talks to Zip through her headset who tells her that Amanda owns another ship, Tisiphone, anchored off the coast of Thailand. It looks like Amanda and her crew are after Lara. She thanks Zip and tells him to take some rest. Lara takes it from here and using the bike, she jumps over a deep chasm. She then drives into a cave.

After the cut scene, dismount and turn around. Go to the right where you will find a Health Potion near some empty vases. Get the bike and drive through the tunnel. At the end, dismount and approach the stone door. Use the power of the gauntlent to slide it to the right. Drive through it to enter the next area.

In the brief cut scene, Lara watches the high pit and the ramp going all the way to the bottom.

Going down the ramp - Turn around and go to the left of the doorway where you will find a Health Potion and a Treasure (1/30) hidden in a rounded vase. Get the bike and drive down a bit until you meet a Viking thrall sitting on a stone block. Start shooting while backing up and do not forget to stomp it once it falls down.

Continue down the ramp, being careful of the openings. They appear on the right hand side, so stick to the left. In some cases, the openings extend and reach the wall on the left. You cannot jump over them, so you have to drive along the wall. As you go down, you will meet three more Viking thralls. You run over them as you drive, but be careful not to fall down as you steer. The vases on the path are empty, so do not bother with them.

When Lara reaches the door, a cut scene starts. The engraved door is mentioning the "Gate of the Dead", which Lara identifies as Valhalla, the legendary place where the fallen warriors were preparing for Ragnarök, the apocalypse.

At the bottom of the tower - After the cut scene, draw weapons. Four Viking thralls are approaching from the right, so kill them all. You can throw a couple of grenades and run away. If you are lucky, some of them will be killed. Now get some pick-ups before continuing. To the left of the door (as you face it) is a vase that contains a Treasure (2/30). Move clockwise to reach the spot where the ramp creates something like a shelter. Break the vase and pick up one more Treasure (3/30). Finally, get the Health Potion at the bottom of the ramp.

The tower is really tall and you will have to climb to the top. Before doing that, you have to activate it. There are three stone blocks on the ground near the tower. Pick up each one and place it in one niche to the side of the tower.

When you place all three stone blocks, the cut scene shows that the tower has been activated and the stone rings of the tower have begun to rotate. The camera also points upwards, indicating where you have to go.

Activating the first symbol - Run around the tower (stay close to it) until you find the symbol that glows when Lara is nearby. Grab onto it and move to the right, rotating the base of the tower at the same time. The first symbol on the floor is the same as the one that glows, so rotate the base up to this point (as shown in this screenshot). You rotate the base to the left as weel, but that way is much longer. When you do it correctly, a ray of light will fall from the ceiling in front of the door.

There are three more symbols to activate and you will do it by climbing up the tower, eventually reaching the top of it.

Climbing up the tower/ From ground to first tier - (This page shows the process until you activate the second symbol.) Jump to grab one of the lowest handholds on the side of the tower and wait until the ring above rotates and brings the next handhold. Jump to grab it and again wait until the next ring above brings a horizontal pole above. Jump to grab the pole and climb to stand on it. Approach the tower and wait for a narrow ledge to pass above Lara's head. Jump to grab it and pull up to hug the wall. When another pole passes above Lara's head, jump up to grab it. Traverse away from the tower until you reach the middle of the pole. Climb on the pole and jump to grab the circular ledge above; pull up.

Activating the second symbol - Carefully go around the ledge and pick up a Health Potion. Now find the symbol that glows when Lara is nearby. Grab onto it and move to the left, rotating the ring at the same time. When the symbol reaches the same one designed on the floor, a second ray of light falls from the ceiling in front of the door.

Climbing up the tower/ From first to second tier - (This page shows the process until you activate the third symbol.) Jump to grab one of the lowest handholds on the side of the tower. Jump straight up three more times to reach the topmost handhold. Traverse to the either left or right and jump to grab the horizontal pole. Climb on it and wait for another pole to pass above. Jump to grab it and climb on it. When the next ring brings a handhold above Lara, jump to grab it and do the same thing to grab the next handhold above. Wait until the horizontal pole comes above you and jump up to grab it. Traverse away from the tower until you reach the middle of the pole. Climb on the pole and jump to grab the circular ledge above; pull up.

Activating the third symbol - Go around the ledge to find a vase that contains a Treasure (4/30). Grab onto the symbol that glows when Lara approaches it and rotate it to the right until you reach the same symbol on the floor. When you do it correctly, a third ray of light falls from the ceiling in front of the door.

Climbing up the tower/ From second to third tier - (This page shows the process until you activate the fourth symbol.) Jump to grab one of the lowest handholds on the side of the tower. When another handhold passes above Lara, jump up to grab it. Wait until the next ring brings a narrow ledge above. Jump to grab it and pull up to hug the wall. Jump to grab the horizontal pole as soon as it passes above Lara's head, but do not pull up yet.

There are holes that spurt steam that can hurt Lara and make her lose her grip and fall down. If the latter happens, Lara will first hang with one hand before falling down, so quickly press the Intercat button to make Lara hang with both hands. While hanging from the pole, climb on it as soon as the steam hole passes above. Turn to face the tower and jump to grab the narrow ledge above. Pull up to hug the wall and quickly jump straight up to grab the horizontal pole before the steam hole reaches you. Climb on it and turn to face the tower. Jump up to grab the narrow ledge above and pull up to hug the wall before the steam hole reaches you. Jump up once more to grab the horizontal pole and traverse away from the tower until you reach the middle of the pole. Climb on the pole and jump to grab the circular ledge above; pull up.

Activating the fourth symbol - Go around the ledge and get a Health Potion and two Treasures (5 and 6/30). One of them is hidden in a vase. Then grab onto the symbol that glows when Lara is nearby and move to the left. When the symbol reaches the same one designed on the floor, a fourth ray of light falls from the ceiling in front of the door.

When all four symbols are activated, the gate will unlock.