I can't tell. Have you actually made it inside the shadow stones area, or are you stuck outside because you can't find shadow stones for the two statues?
If it's the latter, then look
here and find the shadow stones at #4. (If you used the shadow stones from #4 in the chessboard, then you're screwed.)
If it's the former, then look
here and... I don't know, read more carefully or something.
SWC