Spirit-transfer Stories

A young girl/wolf comes into her powers just in time to save all of her kind. Wolves are disappearing and its her job along with Ace to find out what is happening to all of their pack mates and those of the other packs before its too late. Having to rely on each other at every turn, with a budding romance developing between them. Will they find their pack mates in time or is it the end of their kind forever? Or the beginning?