Loriella Kenzie Cosworth is an orphan who lives with her aunt and two cousins in an old estate in County Cork, Ireland. After her entire family died in a fire, she found solace under an old bridge near a waterfall. One day she wanders off into the Blarney Castle and finds a journal dated over 700 years ago, written by a mysterious man whose signature is 'M. M.'. Little does she know that the journal she found is a lost relic sought for by archelogists and historians, and by those who dwell in the dark, and do not wish to be known. Who wrote this journal? And why do so many want it? What once was a carefree stroll in Ireland, turned into a gripping dangerous tale mingled with Celtic Folklore.
In the epic conclusion to the Devil's Deal series, Freya has one final chance to discover the full potential of her own power, and to use it to restore balance in the universe - once and for all. After the destruction caused by Roisin, Ferya and Torix come to terms with their losses and mistakes... And prepare for a final battle that will change everything.