first: welcome to the forum <img src="/ubbthreads/images/graemlins/wave.gif" alt="" />
1) pyramids: ask the imp in the counsil hall (not the member) its the same one who took them from you. Hes in the northwest side of the building iirc
check this map for it
large map of counsilhall (By Dragon)2) You can reenter stormfist castle with the pyramides. drop one in and teleport back in. Or just walk back in, they'll stop you. Immidiatly reenter, normally they cant stop you. There is another way, but that really cheating; Hexediting.
3) Those plateaus arent made to travel on. But it is possible.
check this map, everything is visible here <img src="/ubbthreads/images/graemlins/winkwink.gif" alt="" />
Dark forest map (by Dragon)