Initus by Talis Jones is partly a prequel as well as a sequel in the Walking Shadows series. I enjoyed it the most of the entire series. It is an exciting story, tracing misuse of biotechnology to gain political power. It is written in first person, with the main character telling the story. The plot unfolds in a fairly linear manner, which makes it easy for people like me to follow.
This is an excellent example of science fiction done extremely well. Descriptions of lab procedures are very accurate, including such things as pipetting and encoding samples. As a semi-retired biomedical scientist, I was impressed. Unlike some popular sci-fi books, there were no major errors, such as occurred in The Martian, where plants transpired mineral water instead of plain water. The banter and gossip amongst the lab mates were also very realistic.
This is a serious story, but I really enjoyed the colorful (and very funny) exchanges between two characters from the Southern Coalition (SC). The Southern Coalition is a wild country with lots of freedom, but no justice or order. Despite its evil aspects, the two young men from the SC are good-natured, fun-loving, and most of all FUNNY.
I enthusiastically recommend Initus as a great read. I suspect you will also love this book.