Oswald is a loveable character. However, I think I like his spiteful mother and sister Clemence better. Clemence knows how to push Oswald to his limits in order to get what she wants, a trait that I share. His family reminds me of my own so their interactions are humorous to me. Ah . . . sibling rivalry. You gotta love it!
It goes without saying that the author knows her medieval history well. She shows the era as it was and uses many terms of the day. I have had to pull out an old English language medieval dictionary that I bought years ago at a travel bookstore to keep track of everything. However, if you do not have such a dictionary you should be fine using the glossary at the end of the book.
I am looking forward to reading the next Somershill Manor Mystery. Since The Butcher Bird was published last year I assume the third book in the series will be published in 2017. Can't wait.