Queen without a Crown by Fiona Buckley (historical fiction)

The book takes place during the time that Mary Queen of Scots was imprisoned in England. This Ursula Blanchard mystery at Queen Elizabeth I's court mentions queens to set the mood, but Elizabeth shows up just a little and Mary not at all. I wasn't disappointed with the action or the author's obviously deep scholarship (while her protagonist an upper class woman, she provides detail about other social strata and life at the time), but I knew who did the murder as soon as that perpetrator appeared, which is a letdown in a mystery in my opinion.  I may try another of this series, but if the same thing happens again, won't give it a third chance.