The Trials of Keith, book three

Now that the truth about Lea is coming out and she is being punished for it, Keith is determined, with the approval of Mistress Katrina to ensure Stephan, Lea’s lover, is also punished. Keith, is still Mistress Katrina’s slave, but she approves of his plan for Stephan’s trial and punishment at the house.
As usual, there is a twist to the story, and Keith is right in the middle of it.