Maybe its unique take on the werewolf characters. It could have distinct personalities for the werewolves that set it apart from other novels in the genre.
The writing style could be what makes it special. If the author has a vivid and engaging writing style, it can bring the werewolf world to life in a way that other novels don't. It might use unique descriptions for the werewolves' transformations, their abilities, and their pack dynamics. This can make the reading experience more immersive and different from what readers are used to in other werewolf - themed books.