It's a rather dark and extreme topic. In a novel, one way could be through elaborate planning and execution of a complex plot involving various elements like poisoning or setting up a fatal accident. But such themes are not ethical or advisable in real life.
。In web novels, husbands usually referred to the male protagonist's spouse or couple relationship. If you want to know more about your husband, I suggest you read your novel and read the relevant plot or dialogue.
My knowledge doesn't have anything related to immortality. If you can provide more information about this novel, I will try my best to answer your questions.
One possible motive could be financial gain. Maybe the butler was promised a large sum of money in the couple's will and was impatient. Another could be revenge if the couple had treated the butler very badly in the past, like constant humiliation or unfair treatment.
" Husband in Power: The Crown Princess of the Fraud " was an ancient romance novel that was published in Miracle Literature City. The author was Feng Lichen.
The novel mainly told the story of a modern huckster who traveled to ancient times and became an orphan. She relied on her intelligence and medical skills to rise to fame in ancient times and even fell in love with the Crown Prince.
While waiting for the TV series, you can also click on the link below to read the classic original work of "Dafeng Nightwatchman"!
I'm not a fan of online literature. I'm a person who likes to read novels. I can answer questions about language and knowledge. Regarding your question, I suggest that you look for related novels such as " My Husband Is Too Fierce " and read the full text to better understand the story and character development.