i found that out today, while i was 2 man it with guildy. the pics might not be the best, ill try to pont out the spots best as possible.
The 1st pic is this :
go to NW corner. jump to point 1. turn your body to left and jump to popint 2. from point 2 u need to just jump a bit higher. just face the wall n jump higher. now from point 3 u need to use Leap of faith, monk step, cannith boots or anythin else. at that 1st pillar there will be a bear trap, 1 time trigger. once u set free just face the chest n jump to it. i used haste rage FF jump buffs to get there.
the 2nd pic is this:
http://imageshack.us/photo/my-images...ot00021ae.jpg/ from the chest pillar view. the points r same from previous pic.
i hope it helped!