Talos is one of the main characters. He's a complex figure, often conflicted between his loyalty to the Night Lords and his own sense of morality. Another is Sevatar, a powerful and feared leader within the legion.
One great one to start with could be 'Soul Hunter'. It really delves into the dark and brutal nature of the Night Lords. It gives you a good sense of their culture and how they operate within the Warhammer 40K universe.
The characters are very interesting. You have these complex individuals within the Night Lords. They are not just one - dimensional bad guys. They have their own motives, their own stories of how they came to be part of this terrifying legion. And the novels do a great job of bringing these characters to life, making you care about them even though they are on the 'evil' side.
Well, there's also the theme of the fall from grace. They were once part of the Emperor's grand plan but have deviated so far. This is shown through their actions and the way they interact with the rest of the 40k universe. Their once - noble purpose has been warped by their experiences and choices, which is a central exploration in the novels.
I think 'The First Heretic' is very popular. It has a complex plot that involves the fall of the Night Lords legion from their original state. It also has great character development for the main characters within the Night Lords.
One of the notable Night Lords in novels is Talos. He is often a central figure, showing the complex nature of the Night Lords. He has his own moral code, albeit a very twisted one compared to most protagonists.
The Night Lords in novels are often characterized by their nihilistic and sadistic tendencies. They don't just fight for victory; they seem to take pleasure in the suffering of their foes. Their origin stories usually involve some form of dark pact or a fall from grace. Their appearance might include elements like spiked armor and dark symbols. They are also likely to be masters of infiltration, able to slip into enemy lines unnoticed and wreak havoc from within. Their culture within the novels often revolves around a cult - like worship of their own power and the ability to instill fear in others.
I'm not sure specifically as there could be various themes. Maybe they focus on the dark and brutal deeds of the Night Lords legion, their campaigns, or the inner workings of their traitorous society.