Neve and her sisters failed in protecting the mortal world against the legions of hell when the Veil they had spent their lives guarding split and the vengeful cousin they forgot ever existed, Aodh, managed to slip through. Dangerous and bitter, Aodh is on a mission to free the rest of their family still trapped behind the veil and set them loose on the mortal world.

Still injured from her last battle, Neve is not only working to track Aodh, but also trying to navigate painful memories that keep rising to the surface. Memories of her past lifetimes protecting the Gate...and of her first life, before she and her sisters scrubbed it from their minds. More questions arise when a new family member reveals themself, someone Neve and her sisters have been missing. Someone who might just be able to save them all.

Neve must face the sins of her past while navigating the dangers of the present. The more she remembers, the more it seems like everything she was raised to believe was a lie, and the fallout might decimate everything she has worked so hard to build in the present, including her relationship with Alexandria.

Caught between humanity and divinity, the past and the present, Neve must try to strike a balance between the warring forces both within and without, because if she doesn't, it might not just be her relationship at stake, but the whole world.