The Moonshade Highlands puzzle, located on the top of Hammerknell Fortress, is possibly the hardest puzzle in Rift. First off, I recommend doing this puzzle with another person. It can be soloed but the more people you have working on this puzzle, the easier it is. (Max you should bring is 8) All you have to do for this puzzle is keep the 8 lights, which at the start are red, green as long as possible. There are 10 lights at the back near an orb. The longer the lights are green the more lights near the orb will light up. When all of the lights near the orb are lit, you can right click on the orb and get your key to the chest.
The whole trick to this puzzle is keeping the 8 lights green as long as possible. If your group is not working together and keeping the lights green, you will not be able to complete this puzzle. To see how this is done watch the video we have on this puzzle.