Book 1: Lena and the Hidden World introduces Lena as she grapples with her newfound ability and the growing realization that the world is not what it seems. When a mysterious, injured "dog" arrives at the clinic, Lena is drawn into a conflict that goes far beyond anything she could have imagined. With the help of Gabriel, the enigmatic werewolf who seeks her aid, she must learn to navigate the shadowy edges of the supernatural world while facing a threat that could destroy everything she holds dear.