Sir Geoffrey Mappestone returns from the Crusades in 1103 to his family's Goodrich Castle in Herefordshire, only to find that his brother, Henry, has been murdered. His sister, Joan, his brother-in-law, and servants show no interest in finding the killer. Geoffrey learns that everyone hated Henry, who was brutal and addicted to drink. The lords of neighboring manors distrust Geoffrey because knights of the Crusade have a violent reputation.
Geoffrey is determined to find his brother's killer. But he is also nagged by Joan's demand he immediately get married and produce an heir. Without an heir, he is a likely target for murder himself by neighboring manor lords who desire to absorb his estate into theirs. So, several women are proposed as mates, none of which appeal to Geoffrey. In addition to the woes he already has, a prominent priest asks him to investigate another murder, one that happened months ago over in Normandy. Other murders soon occur, seemingly related to Henry's murder.
When later one of his neighbors launches an attack on Goodrich, Geoffrey is forced to mobilize the men of his estate into a fighting force.
The "author", Simon Beaufort (in reality a pseudonym of Susanna Gregory and Beau Riffenburgh when they write jointly), fills the pages with rich details that seem authentic for the period. They pile more and more demands on poor Geoffrey, who simply wants to live in peace on his estate. Deadly Inheritance (number six in the Mappestone series) is hard to put down as the action and mystery keep rolling on. It is definitely worth the read.