Well, in 'good kings bad kings a novel', a significant theme is probably the impact of rulers on the lives of their subjects. Good kings might bring prosperity, justice, and stability, while bad kings could cause chaos, poverty, and oppression. Also, the exploration of human nature is likely a theme. It could show how power can corrupt or ennoble a person, as seen through the characters of the kings in the story.
The kings themselves are likely to be the most interesting. The good kings with their noble deeds and the bad kings with their villainous acts can be really engaging characters.
I haven't read it yet, so I can't give a detailed account. But generally, in a series like this, there might be elements of fantasy, like dragons which are often associated with magic and power. Maybe the 'dragonfire' is some kind of special power or event in the story.
There's no way to know exactly who the two kings are without more context. They could be fictional characters created for the story, or they could be based on historical kings from different regions.
Another lesson is to understand the setting. It can set the mood and influence the plot. In a historical novel like 'War and Peace', the backdrop of the Napoleonic Wars shapes the characters' lives and actions. Also, look for themes. They are the underlying ideas that give the novel depth, like love, power, or justice in many novels.
To plan lessons for a novel, think about the reading level of your students. Based on that, decide on pre-reading activities to build background knowledge. During reading, stop at important points for clarification and discussion. Afterward, have students reflect and share their thoughts through writing or speaking. Also, incorporate multimedia resources to enhance understanding.