Shadowfever

In "Fever," MacKayla Lane returns to Ireland to uncover the truth behind her sister Alina's murder, only to discover she belongs to a bloodline entwined in a hidden conflict between humans and immortals. As she grapples with grief and pursues a powerful, dark book known as the Sinsar Dubh, Mac is thrust into a dangerous battle where allies become foes and her own identity is called into question. Set against a backdrop of intrigue and magic, her journey leads her through the shadows of an ancient past as she confronts a destiny that could change everything.