This book is about a family of witches that goes back for hundreds of years. The main character in this book is a witch named Eliza. Eliza lives in a small village in Ireland with her family. On her sixteenth birthday, she learns that not only is she a witch but the strongest witch in her family. During this time, she learns of her birthright to protect Hecate's most prized creatures, the werewolves. As the story progresses, Eliza learns she must not only protect the people of Ireland, but also the werewolves from harm.

In the end, she not only becomes more powerful but learns more hidden truths in her past. She must decide what is more important, protecting the people of Ireland or the blessed werewolves.