Larian Studios Forums Divine Divinity (English) General Pyramids, Dragon Shield, Dark Forest

I am almost through the game, I've got the 7 assembled. A couple of questions:
First, how do I get the pyramids back? Where are they? (the teleporter pyramids, the ones taken when you enter Stormfist Castle).
Secondly, I failed to get the Dragon Shield when I was in the castle.
a) Is there a way to sneak back into the castle? I have developed a BattleMage...Mr. Good Guy...and don't believe in killing needlessly. (I.E. killing all the guards...etc)
b) Is there an entrance from the sewers into the castle?
Thirdly, there seem to be many plateaus in the Dark Forest that I cannot find entrances to. Are these explorable?
Any help on the questions would be greatly appreciated. Thank You
Bob Brown