Loss and longing are also common themes. When characters are removed from their own time, they often long for what they've left behind. In 'Slaughterhouse - Five', Billy Pilgrim's experiences in different times make him seem lost and adrift, and there's a sense of loss for the normal, linear progression of life that he's been denied.
One main theme is often the idea of fate. In these novels, characters may be flung through time, but there still seems to be a sense of things being meant to happen. For example, in 'The Time Traveler's Wife', Henry and Clare are fated to be together despite the chaos of his time - traveling.
Memory is a huge theme. The way the narrator delves into his past, it's like he's on a journey through his own memories. Time is also key. It shows how time can be both linear and cyclical in our lives. And then there's the theme of society and class. We see different social classes and how people interact within and across them through the story.
Social class is a significant theme as well. The story delves into the different social strata, from the upper - class aristocracy to the working class. It shows how people's behaviors, values, and opportunities are often determined by their social class, and how difficult it can be to cross those class boundaries.
One of the main themes could be the passage of time. Marquez often explores how time can change things, people, and relationships. Another theme might be loss, as suggested by the 'lost time' in the title. It could also touch on memory, as the sea of lost time might be a metaphor for the reservoir of memories that are lost or fading.
One main theme could be loss. It might explore the loss of something valuable, like a relationship, a dream, or a sense of purpose. Another theme could be the search for light or hope in the midst of darkness, symbolically or literally.
One of the main themes is adventure. The characters embark on a journey into an unknown and dangerous world, filled with prehistoric creatures. Another theme is discovery. They are constantly making new findings about this lost world, whether it's about the unique flora or the behavior of the dinosaurs. Also, survival is a key theme. They have to fight against the elements and the menacing dinosaurs to stay alive.
I think loss is a significant theme in this novel. Characters lose their innocence, their normal lives due to the war situation. And perhaps there is a theme of self - discovery as well. As the story progresses, the characters might discover new aspects of their personalities while dealing with the challenges presented in the plot.
One key theme could be the passage of time. In many stories about lost time, the idea of time slipping away and the consequences of that are explored. Another might be regret, as often when time is lost, there are things left undone that characters regret.
One of the main themes could be about lost identity. Characters in 'the lost stories' might be searching for who they truly are. Another theme could be the passage of time and how things are lost over time. For example, memories or relationships. And also, the theme of hope in the face of loss, as characters strive to regain what has been lost.
One of the main themes is family. The Robinson family is at the center of the story, and their relationships, support for each other, and growth as a family unit are important aspects. Another theme is survival in a hostile environment. They have to deal with various threats in space and on strange planets.
Survival is also a big theme. Take the boy in 'The Graveyard Book' as an example. Bod has to learn how to survive in a graveyard filled with all kinds of supernatural beings. He has to find food, avoid the bad guys, and make friends who can protect him. And friendship is another important theme. In these novels, the lost boys usually form strong bonds with those who find them or help them, like how Wendy becomes like a mother figure to the lost boys in 'Peter Pan' and they rely on each other for support.