I went through most of the dragonspire with no problem.. i got two crystals.. put em in the shield and then dropped down a waterfall to get the 3rd on =e that sist behind two boulders, after reading all the posts I realize I should have moved the boulders rather than go behind them. What happens now is I can't get back to the shield because the lift is at the top and I'm at the bottom with no way to retuen the lift. I tried climbing up the rope and I keep falling. If anyone has a solution, besides restarting the dungeon, please respond.

Simply click on the rope again to bring the lift down, wait a few seconds since the lift is slow to come down.

I ran into the same problem, hehe hope this helps =)

Good Luck.