Oracles of Fire 3 - Last of the Nephilim
A single lie is spoken, allowing the Nephilim, a race of giants from ancient times, to invade Second Eden, a peaceful civilization in an alternate dimension. While Earth and Hades are locked in a catastrophic merging of their two realms, the prophet Enoch works to gather an army of humans and dragons from each world to go to war against the Nephilim. Included in that force are a small girl with prophetic power who originated in the depths of Hades; Billy Bannister, the heir of Arthur and hero of the Dragons in our Midst series; and Bonnie Silver, his fellow warrior.