Sons of God Daughters of Men (Sons of God - Book 1)
Guardian angel Caelan has fallen in love with Carissa, the human woman he has sworn to protect. Seeing her in danger, he forsakes heaven to save her, forever changing heaven and earth. Others soon follow, uniting to give rise to an empire as the gods and kings old. Challenged by humanity, Satan and his demonic forces, Caelan and his brethren must unite or face destruction.