Well, 'Reprisal' is purely fictional. It's crafted by the imagination of the writers and not based on real events. The plot and characters are all invented to engage the audience.
A 'blood money novel' could refer to a novel that involves themes related to ill - gotten gains, perhaps money obtained through immoral or illegal means like murder or crime. It might explore the consequences, moral dilemmas, or the stories of those involved with such 'blood money'.
One possible form of reprisal based on a novel could be censorship. If the novel contains controversial ideas or themes that some groups find offensive, they might try to suppress it. For example, in the past, some novels with radical political or sexual content have faced censorship attempts.
The term 'blood money' often has a negative connotation. It could be a story about a historical event where a group of people profited from the suffering of others. For example, during times of slavery, slave owners made money from the forced labor of slaves. That money was essentially 'blood money' as it was based on the exploitation and dehumanization of a large group of people. Another possibility is a story about a corrupt business deal where bribes were involved and the money made was 'dirty' or 'blood money' because it came from unethical practices.