Well, from the title 'Renegade Angels Novel', it seems likely that the story focuses on angels who are rebels in some way. It may tell the story of how these angels come to be renegade. It could be due to a difference in ideology, like they might have a more compassionate view towards humans than the traditional angelic view allows. Their renegade actions could then set off a chain of events that include battles, both physical and ideological, with other angels who abide by the old ways. And as the story progresses, we might see these renegade angels either succeed in their mission or face a tragic end.