From Finland with Love (Anomaly Hunters, Book Two), Volpe J. S.

Two years have passed since the fateful events of Book One. Now sophomores in college, Calvin and Cynthia investigate a campus murder linked to the legendary Ur-Tarot, the original Tarot cards created by a psychic monk a millennium ago. Along the way, the duo befriends Kaarina Nurmi, a beautiful bisexual Finnish girl who helps out with the investigation. Unfortunately Kaarinas involvement might prove to be more trouble than its worth, given that Calvin is straight, Cynthia is gay, and both of them are frustrated virgins who see their sensual new friend as the answer to their lonely prayers. Will the duos ensuing rivalry for the delectable Finn derail both the investigation and their friendship? Then again, considering the way the dead bodies are piling up, they might not be alive long enough for it to matter...