She is as powerful as the moon; he is as mysterious as the night.

Cast aside by her own clan, Rhiannon was raised among the McCormacks, embracing the life of a true warrior. But when war looms over the Campbells and their deadly enemy, "the Adder," emerges from the shadows, her blood calls her home.

Under the moonlight, a chance encounter intertwines her fate with a stranger who saves her life. Angus, a lone wanderer with an enigmatic past, becomes a warrior within the Campbell clan. As their bond deepens, Angus knows he can't hide his secrets forever.

Together, they journey across the rugged Highlands, seeking allies and confronting legendary heroes. Surrounded by her kin, Rhiannon feels closest to Angus. But trust is a double-edged sword, and Angus's hidden truths could change everything.

As the final battle approaches, Rhiannon must decide: Has she entrusted her heart—and her clan's fate—to the wrong person? The legacy of a legendary clan hangs in the balance...