Death's Abyss (Sea and Stars Book 3)

All are equal in death.
Tallora’s world ends in a single, bloodstained night, and all the world will fall in line unless the gods interfere. But divine aid comes at a price no mortal can pay, except in death . . . and perhaps Death herself has a few tricks of her own.
From the author of FALLEN GODS comes a tale of redemption and sacrifice—and the true power of forgiveness.