tunnel and pick up a small medipack . NOTE: When you climb out of the water to get the medipack, a chime sounds, indicating you've found a secret. However, since the game doesn't seem to keep track of secrets other than the artifacts and relics, I've listed this as normal "supplies". Return through the tunnel to the main pool. When you climb out of the water, 3 more wolves attack. If you want to, you can climb up on the rocks to the right, above where you found the FIRST COG, and shoot them from above. NOTE: If you climb out of the pool on the far right side (when Lara's back is toward the falls), near the rocks where you got the cog, the wolves won't appear at all. However, they will show up when you return to this area later, so be careful if you choose to play it this way. Now climb the wooden ladder to the first level of the big machine. Place the FIRST COG on the shaft and use the nearby switch to activate the first stage of the device and trigger CHECKPOINT 6 . In the Nintendo Wii game, this mechanism is a gear puzzle . After replacing the cog, you must rearrange the cog you found, along with several smaller cogs, in order to connect the two larger cogs at the sides of the screen. Then pull the switch on the right side of the screen to activate the machine. Stand beneath