Patriarch (The Human-Undead War Trilogy #2) By Jonathan Ondrashek
Seven months have passed since Barnaby, the Undead patriarch, tumbled to his death. The Human-Undead War appears to be over.
However, Barnaby is alive and well. He’s amassed an army of Vampirons—humans, with fake fangs who’ve hidden in Australia—and has convinced them to travel to the United States, where the Undead Army remains in spite of a peace treaty. He plans to reignite the war, continue his evil plot to plunge Earth into everlasting darkness, and reclaim his patriarchal throne.