I have not read any other of Michael Jecks' similar novels, but by all accounts, this is in a very similar style. I was a little put off at first glance by the way in which the historical context seems so important, but fortunately only a passing knowledge of Freemen and Villeins in the 12th-13th century is needed.
In many ways, this can be compared to an Agatha Christie novel set a few hundred years ago. At it's most basic, an escaped Villein has been found hung on a tree after claiming the protection of the King, and the book investigates the suspects and clues as you would expect.
Overall, as light reading, this is a book well worth bothering with. The conclusion is perhaps disappointing if you have spent a lot of time pondering over the various clues, but this is still a fun read, requiring much less knowledge of the times than the cover may seem to convey.