I'm not sure specifically as I haven't read it. But generally, it might be about angels who rebel against some sort of established order in their celestial realm. Maybe there are power struggles, moral dilemmas, or a fight for freedom among the angels.
Well, without having read the 'Rebel Angels Novel' in detail, we can make some assumptions. It might start by introducing the setting of the angelic world. There could be a description of the different types of angels and their roles. The rebel angels might emerge as a group with a different ideology. Their rebellion could be a long - planned event or a sudden reaction to a particular incident. As the story progresses, there could be a series of events that show the consequences of their actions. It could also touch on themes like loyalty, betrayal, and the search for truth in an otherworldly context.