A review by dearbhla
A Sundial in a Grave: 1610 by Mary Gentle

5.0

According to the mathematic calculations of the Hermetic astrologer Robert Fludd, 1610 is the pivotal year in deciding the world’s future. It is the year that the King of England must die. And as his assassin he picks Valentin Rochefort, spy and duellist of no-little fame in France. He is also responsible for the death of King Henri IV of France.
That however was an accident of sorts, and now Rochefort is on the run. Already burdened with Dariole, a young arrogant duellist, Fludd’s interference is not what Rochefort wants.
Full review: http://www.susanhatedliterature.net/2005/07/21/1610-a-sundial-in-a-grave/