Since I haven't read the 'Playing with the Heart Novel', I can only guess. It could have a male and a female lead. The male lead might be a charming but somewhat mysterious figure, and the female lead could be a strong - willed person who gets caught up in the male lead's 'playing with the heart' actions. Or there could be a group of friends where one of them is the one who plays with others' hearts, causing drama among the group.
I'm not sure specifically as I haven't read the novel. But it's likely there's a female protagonist since it says 'her heart' in the title. There might also be a male character who has a significant role in 'playing with her heart'.
Since I haven't read the novel, I can't say for sure. But it could be a couple, like a man and a woman where one of them is the 'heart - player'.
Since we don't have more information about the 'playing for time novel', it's hard to say exactly. However, there could be a group of characters. For example, a team of rebels in a dystopian society who are playing for time to plan their revolution against an oppressive regime. There could also be a character who is a time - keeper or an observer, who watches the others play for time and might have their own motives for either helping or hindering them.
I don't know as I haven't read the 'playing for keeps novel'. But usually, main characters are those who drive the story forward, like a protagonist who has a goal and an antagonist who tries to stop the protagonist from achieving that goal.
I'm not sure specifically without reading the 'the heart novel'. But usually, there's a protagonist who drives the story forward. There might also be a love interest, a mentor figure, and an antagonist who creates conflict.
I'm not sure exactly as I haven't read it. But usually in such novels, there could be a protagonist who drives the story forward. Maybe it's a young person on a journey of some kind.
The main theme might be related to the emotional turmoil and growth of the characters. Since the title has 'playing with the heart', it could imply that the characters are involved in situations where their feelings are toyed with, perhaps in a romantic or a deeply personal context. It could also explore how people react when their emotions are manipulated, and what they learn from such experiences.
I don't know the main characters in this novel as I haven't read it. It could be a group of friends, a family, or individuals with unique personalities who are involved in the story's events.
It's also possible that the main characters are part of a group or community. They all might be facing some sort of crisis that requires them to tap into their inner phoenix - like qualities. Maybe there's a young character who is the key to the group's survival or revival, much like how a phoenix can bring new life or hope to a desolate situation.
I don't know the exact main characters as I haven't read it. But it could be a young girl with a tender heart as the main character. Maybe she is trying to find her place in the world.