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Finally, the water pipe that off, just go in the scene, there are three blue trap in the water pipe, with blue and red crystal ball with the use of blue will be light, light is the switch.
Will use twice the blue switch. Through the blue switch can be opened just go to the place where the high hole in the hole into the next place to the high altitude, then you can get that place hanging on the wall of the long switch, rotating the color of the water pipe is not the same You can, and there is a blue circle is not in the same color after the water pipe to find the hole. Just get good, I actually fell from the water pipe, and never get up again, counted as their customs clearance it!