Board Thread:WARNING ALL USERS False Info\Spoilers/@comment-71.87.104.8-20130729045241/@comment-11565898-20130731070350

What if when Paige died by the tree, her soul actually went into the tree? So when Blake was found injured and was dying, Paige's soul went into her body. With Paige's soul and the power of the Druid tree, she turned into the Darach.

Just a theory; at this point anythings posible.