THE DARTS! i know how to solve this one. before each test there is a box with something inside to help you. for the darts you get a piece of paper with daedric symbols on it. this is the key to completing thie darts with the stones part. look closely at the patterns on the paper, one of the symbols be repeating itself side by side showing a path through each set of stone squares. its difficult to describe but study it and you will figure it out. think of it like a word search
