Which Wolf is Witch

Which Wolf is Witch Book 11 in the Shifted series. Colin Woodland has watched as each of his siblings found their true mates. When he meets the spunky dark haired witch Rina Blackwell his attraction to her tells him he might have found his mate as well. The problem is she doesn't seem to feel the same. Torn between staying seeing if what they have is a true mating and running far and fast so he won't turn feral if she rejects him Colin battles with the age old question. Is she really the one?