The Lost Saint The Dark Divine Series, Book 2.

Grace Divine sacrificed her soul to cure Daniel Kalbi and lost her beloved brother in the process. Desperate to find Jude, Grace befriends Talbot -- a newcomer to town who promises he can help her be a hero. But as the two become closer, the wolf grows in Grace, and her relationship with Daniel is put in danger -- in more ways than one. Unaware of the dark path she is walking, Grace begins to give into the wolf -- not realizing that an enemy...