The Unhallowed After (en Inglés) - Lee Alexander;Erin Watkins

After surviving earlier infernal trials, Damien Blackwell and Vivian descend even deeper into Hell to save the last of the children being used as living anchors in a monstrous gate system designed to open Earth to darkness. In the seductive horrors of Nashcatri, the mind-breaking void of Wasterflau, and the cruel labyrinths beyond, every realm is built to corrupt, unravel, or consume them. Damien must fight not only demons, Vanguards, and the Sovereign's collapsing hierarchy, but also the entity bound inside him-Xandros, a power he can use only at the risk of becoming something no longer human. Meanwhile, Vivian bleeds herself raw trying to heal the broken, hold reality together, and keep them both anchored as Hell begins forcing exits into the mortal world. If they fail, the gate will stabilize, Earth will become a feeding ground, and innocence itself will remain part of the machinery of damnation. The Unhallowed After is a dark fantasy horror novel of infernal realms, occult warfare, sacrifice, and survival-where love is not softness, but the last thing keeping the abyss from winning.