A Secret Killer (Julia Blake Cozy Mystery Book 4)

Julia Blake runs a cleaning business. She also has the uncanny knack of discovering murdered people.
In this story Julia visits one of her clients, a genealogist called Hugo Barnes. Hugo has uncovered a family secret during the course of his work. He tells Julia that the client won€t be happy about the secret he€s discovered.
Julia finds Hugo€s dead body the next day. She makes her own investigations into Hugo€s death and soon discovers that his assistant, Dinah, and his brother, Gilbert have strong motives for killing him.
Julia also finds out who the last client of Hugo€s was. Did they have a motive to kill Hugo too?
And who is that man who€s been watching Julia€s house?
Julia is determined to find out who killed Hugo Barnes.