Well, the main themes are likely power and power struggle. In a crusade, different forces are vying for power. Then there's the theme of redemption. Maybe some characters are trying to atone for past mistakes during this last crusade. And cultural differences could be a theme too. If there are different groups involved in the crusade, their distinct cultures will play a role in how they interact.
I'm not entirely sure as I haven't read it in full. But usually in such novels, there's a hero - a strong and determined character. There might also be a female lead who is equally important, perhaps with some special abilities or knowledge. And there would probably be a villain or an antagonist who is causing the conflict that leads to this 'last crusade'.
Well, in the 'Indiana Jones and the Last Crusade Novel', the plot is centered around Indy's quest. His father's absence sets the story in motion. As they search for the Grail, they encounter different obstacles. These include dangerous locations filled with deadly traps. The Nazis are also a constant threat, as they are in hot pursuit of the Grail, which adds a lot of tension to the story.
In 'Last Exile Light Novel', a prominent theme is the struggle for power. Different groups vie for control in the fictional world. Then there's the theme of family, not just in the traditional sense but also in terms of the relationships the characters build among themselves. Moreover, the theme of hope is there. Despite all the difficulties and hardships, the characters keep their hopes alive, which drives them forward in their adventures.
Well, loyalty and betrayal are big themes too. Friends may turn out to be foes and vice versa. And there's also the theme of the supernatural subtly woven into the story. It adds an extra layer of mystery and wonder to the already convoluted plot of the Durarara Last Light Novel.
The themes in 'The Last Alchemist' light novel may include the struggle between good and evil in the context of alchemy. Alchemy can be used for both positive and negative purposes, and the story might show how characters navigate this. Also, friendship and loyalty could be themes. The alchemist may rely on friends or comrades in their journey, and these relationships could be central to the plot.
Survival. In the world of the novel, the main character has to survive in a complex and often dangerous environment. There are many threats that they need to overcome, and this theme runs throughout the story.
One of the main themes is survival. Since the protagonist is the last human reincarnated, they have to find ways to survive in a new and often hostile world. Another theme could be self - discovery. As they are in a new form or situation, they need to figure out who they are now.
Power. The 'last boss' concept implies a high level of power and the implications that come with it.
One common theme is the clash of cultures. Naruto comes from a ninja world with its own values and combat styles, and when he enters the Valkyrie Crusade world, there is a contrast. Another theme is power growth. Naruto often has to learn new powers and adapt to the rules of the Valkyrie Crusade world to become stronger. And of course, friendship is also a big theme as he makes new friends in this new world.
Indiana Jones is obviously very important. His father, Henry Jones Sr., is also crucial as his disappearance drives much of the story. The Nazis are important as the antagonists. And there are some side characters in the various locations they visit who help or hinder Indy in his quest.