Within Plain Sight was another suspenseful read from Bruce Robert Coffin. In this installment detective sergeant John Byron is faced with finding the murderer of a young woman, who is found decapitated in a lumberyard that is no longer operational, and the head of the victim is separately discovered in a dumpster by a homeless person. Meanwhile two murders have taken place in Boston that were also differentiated by head removal. Is the murder in Portland, ME related? As is usually the case, Byron follows a slow process, as he methodically traces the clues to the eventual killer. In this novel, there are a host of suspects, but patience and persistence eventually lead to truth. Byron is accompanied by the same cast of characters that surr0unded him in the first three novels, including Lieutenant Martin LeRoyer, Mel Stevens, Mike Nugent, Gabe Pelligrosso, Dustin Tran, and Diane Joyner. A woman, Pamela Lynd, has taken over as Portland's new police chief, and making favorable first impressions is a goal of most everyone in the department except John. Several egregious leaks plague the investigation, and eventually the culprit is identified. I was quite interested in this subplot. I read a lot of thrillers and mysteries, but Bruce Robert Coffin is perhaps the most rigorous in producing true mysteries. As I devour his works, I am constantly trying to organize the clues in order to predict the ultimate criminal. Coffin also seems to have his characters follow all the proper steps for investigating crime, and I appreciate that as well. My greatest disappointment with this book was that it is number four in the series, and as near as I can determine, the last of John Byron. Hopefully Bruce Robert Coffin is formulating new ideas, and a new John Byron mystery will arrive in 2022.