Parrish, Robin. Dominion trilogy #bk. 3

Evil has infiltrated our world. His name is Oblivion and his touch is death. He devastates the planet, turning it into a twisted, barren world. A dark world. And Grant Borrows, the one man powerful enough to oppose him, is dead. As Grant's remaining friends learn the ultimate truth behind the events that shaped their lives, they secretly gather for one last battle. This showdown between good and evil will prove to every soul on earth that in the bitterest twilight, all is not lost. The world must never forget that even when life is merciless, it is not hopeless

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