Vivian Gandillon is Klause's heroine, her most carefully depicted character, and her most contradictory one as well. Vivian seems confident, self-possessed, strong, and naturally smart—yet, she does not recognize the impossibility of her relationship with a human, nor does she consider the harm that she could bring him in all kinds of senses.

Not only might the jealous members of the pack kill Aiden just because Vivian rejects all of them as suitors, but he will have to be killed if Vivian reveals her secret to him.

Despite the fact that Vivian has been forced to grow up before her time—not only because of her father's death but because of having to assume a kind of responsibility and foresight because of her duty to her werewolf clan—she seems to lack foresight where Aiden is concerned. She seems blind to the fact that...