Anne Perry: A Sunless Sea.
The authoress has written almost 60 books, so it is amazing that she pays so much attention to language and the consistency of the book.
Otherwise, it is much revealing about the practice of law in the Victorian age. Was it really so easy to arrest someone? The book is much too long, but it demostrates that for revenge and justice, killing the target is not necessary, and, like during the Jack the Ripper affair, many crimes are concerned just with removing the witnesses.
There are interesting characters in the book, and in spite of the inicial killing the book is somewhat strangely, and in a pleasant old-fashioned way, calming. I certainly liked reading it.