Alina is dead and her sister Mac has returned to Ireland, the country that expelled them, to hunt her sister's murderer. But after discovering that she descends from a bloodline both gifted and cursed, she descends into an epic battle between humans and Fae immortals as the Sinsar Dubh turns on her, and begins mowing a deadly path through those she loves. Mac's journey will force her to face the truth of her exile, and make a choice that will either...

Changed by the choices she made in order to survive, Mac no longer is the naive, idealistic, and glamorous girl newly arrived in Dublin. Now, on a quest to find her sister's killer, she is a major player in a deadly game, but with one great advantage: she knows how to find the one thing Fae and human alike are willing to kill for - the Sinsar Dubh, an ancient book of magic so dark it corrupts anyone who touches it. What Mac soon discovers, however,...

"The blockbuster Fever series starring MacKayla Lane and Jericho Barrons returns in a brand-new novel from #1 New York Times bestselling author Karen Marie Moning"-- "The next hotly anticipated novel in the Fever series, following the cliffhanger ending of Feverborn and featuring fan favorite characters Mac and Barrons"--