This quest is driving me mad. I've been trying to figure it out. Where the hell do I find the activation stones to put in the holder? I've looked all around the circle room that the four activation stones are in, and I have no idea how to solve it. If I can be helped here, that'd be wonderful 
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I love you long time. Thank you so much 
Profile - Lazydriver
Profile - Chasm
Profile - Lazydriver