Isolation could also be a major theme. As the world is coming to an end in Nevill's supposed 'last days' novel, characters might find themselves increasingly alone. This could lead to psychological horror as they face not only external threats but also their own inner demons while being cut off from the rest of humanity. This sense of being the last one standing or being in a small group that's all that's left can create a very tense and spooky atmosphere.
I'm not sure specifically which Nevill novel is exactly about 'the last days'. But Nevill is known for his horror novels. You might want to check his bibliography and read the summaries of his works to find the relevant one.
One main theme could be mortality. Since it's about Ptolemy's last days, the idea of death and the approach towards it would be prominent. Another theme might be redemption. As he nears the end, he may seek to make amends for past wrongs.
Memory is probably a key theme. Maybe Ptolemy Grey is reminiscing about his past, or perhaps his fading memory is a central part of the story. Also, the theme of self - discovery might be there. In his last days, he could be learning new things about himself that he hadn't realized before.
One of the main themes could be the exploration of a society on the verge of a major change, perhaps related to the concept of crime in a future America. It might also touch on human nature when faced with the impending end of a certain way of life.
One of the main themes could be friendship. In the novel, the characters likely rely on each other during their last days at school, facing various challenges together. Another theme might be change. As it's the last days at the high school, the students are about to enter a new phase of life, so they have to adapt to the coming changes.
I'm not sure specifically as I haven't read this novel. But it might be about Karina's final days, perhaps her struggles, her relationships, or some important events that occur during that time.
I'm not sure specifically which 'last days novel' you're referring to. There could be many novels with such a title or related themes. It might be about the end of the world, the final days of a character's life, or the last days of a particular era or civilization.
Since I don't know the exact 'the last days novel', I can only guess. It could be a story that focuses on the last days of a civilization. Maybe it shows how different people react to the impending doom. Some might fight to save their world, while others might give in to despair. There could be elements of adventure as characters search for a way to survive or make the best of the remaining time.
I'm not entirely sure as I haven't read it in detail. But generally, it might be about the final days of something related to 'the Condor'. It could be about the end of a species named Condor or some event or situation associated with it.
Not having read the novel, it's hard to say for certain. But perhaps the theme is about change. The 'last 13 days' could mark a period of transformation for the characters. It could be a time when they are forced to re - evaluate their lives, beliefs, or values. Maybe there are external events during these 13 days that drive this change, like a natural disaster or a personal crisis that makes them see things differently.