Here's a breakdown of how the theme is explored:
* Friendship: The story focuses on a group of children who become close friends despite their differences. They rely on each other for support and encouragement, and their friendship helps them overcome challenges.
* Standing up for what's right: The children discover a secret about their town's history and the injustices that were inflicted on a group of people. They decide to fight for justice and expose the truth, even though it puts them in danger.
* Overcoming adversity: The children face many obstacles in their quest to right the wrongs of the past. They are threatened, ostracized, and even physically attacked. But their courage and determination help them persevere.
The book also explores other themes, such as:
* The importance of history: The story highlights the need to learn from the past and to avoid repeating past mistakes.
* The power of imagination: The children use their imagination to create a world where they can be themselves and to fight for what they believe in.
* The importance of family: The children are supported by their families, who provide them with love, encouragement, and guidance.
In essence, *The Time Travelers* encourages young readers to value friendship, to stand up for what they believe in, and to never give up on fighting for justice, even when faced with difficult challenges.