Mac Kayla Lane is ready to do anything to save her beloved home. The gifted sidhe-seer has already had to fight with the deadly Sinsar Dubh - an ancient book of terrifying evil, and even win, but despite this, the power of the book has never been so strong over her. After the fall of the walls that protected humanity from the seductive, insatiable fairies, the immortals , who broke free after a long imprisonment, began to devastate the planet. And now Dublin is a war zone, with several factions fighting for control of it. In the city, what the Ice King left behind is melting, the situation is heating up, passions are boiling, the situation is getting out of control. The Light and Dark are confronting nine ancient immortals who have ruled Dublin for thousands of years; a new group of sidhe-seers is announced in the city, vying for power; Mac's former mentee and former best friend Dani "Mega" O'Malley, now her sworn enemy; But most importantly, the Highlander Druid Christian MacKeltar has been captured by the Bloody Witch and is sinking deeper into the madness of the dark ones every day. The only one Mac can count on is the powerful, dangerous immortal Jericho Barrons, but even their burning passion will be tested by betrayal. In this world, one cannot relax in order to survive, the line between good and evil is increasingly blurred, and in order to form alliances, something has to be done sacrifice. In an epic battle against the forces of darkness, Mac will have to decide who she can trust and the lengths to which she is willing to go to protect herself.