In the 'tree of smoke novel', it's possible that one of the main characters is an individual haunted by his past. He may be trying to escape from certain memories or events that have shaped him. There could also be a female character who serves as a source of hope or a catalyst for change in the story. And perhaps a group of secondary characters that represent different aspects of the society or environment in which the story is set, such as a group of villagers or fellow soldiers, each with their own backstories and agendas that intersect with the main characters' storylines.
I'm not entirely sure, but there might be a character who is a soldier or someone involved in a military - like situation. This character could be central to the story as they navigate through the events in the 'tree of smoke novel'.
The main theme could be about the complex nature of human experiences, such as the search for meaning in a chaotic world. It might explore the impact of war or difficult circumstances on individuals and their relationships.
I don't know for sure as I haven't read it. But it could have characters like the owner of the smoke room, who might be a wise old man with a lot of stories. There could also be a young, curious visitor who sets off different events in the story.
I'm not sure without reading it, but usually there are some key family members like the patriarch or matriarch. They often play important roles in driving the story forward.
The two main characters are the tree and the boy.
Since I'm not familiar with the 'the lemon tree novel', it's difficult to say for sure. But perhaps there could be a gardener who takes care of the lemon tree, a child who loves to play around it, or an old man who has memories associated with the tree. These could potentially be the main characters.
I'm not sure as I haven't read the 'crooked tree novel' specifically. But usually, in a novel, the main characters could be someone who is directly related to the 'crooked tree' symbol. Maybe it's a person who discovers the crooked tree and is changed by it. It could be a young adventurer or a local who has lived near the tree all their life.
Since I don't know the exact 'Tree of Life Novel', I can't say for sure. But they could be scientists interested in the concept of the tree of life, or characters with special powers related to it.
I don't know for sure, but it could be a family. Maybe there's a wise old grandfather who has been taking care of the mango tree for years. There might also be a young boy or girl who loves to climb the tree and play around it.
I don't know for sure as I haven't read this novel. But usually, main characters are the ones who drive the story forward. They could be ordinary people dealing with extraordinary situations related to the idea of 'smoke getting in their eyes' in a metaphorical sense.
Since I haven't read the book, I can't say for sure who the main characters are. But I would expect there to be a king or some sort of royalty as it's a 'king series' novel.