I wanted to give this episode a 9 because it wasn't perfect but after so many dull episodes this was a relief so 10 for Jeniffer Love Hewitt for directing this awesome episode.
So we finally saw something new in the season 5 "Shadow" storyline. Of course nothing was revealed but it was great to see the scary silhouettes of Shadows again. And also the Book of Changes played a larger role (although I think it would have been best if it was destroyed in the explosion for good, but I guess the writers still have something in store for it). The biggest question I think is: What do the Shadows want with the Book of Changes?
I read somewhere that the season finale will wrap up the Shadow storyline and won't leave it like the Underground storyline. We can only hope that this is true.
So I think this episode really brought back Ghost Whisperer to life because after Lost in Shadows all the episodes were really boring.