Song of the Monster (Barb Stark Mysteries, #3)
Margaret Koch

The federal authorities want a lot of information from Roberto, but Roberto wants information from only one person – Barbara Stark, that infernal woman who put him into a cage and drove his son insane. He wants to know how she managed to do what no one else had ever done to him.
Invited in by the FBI, Barb’s not sure she wants to do a series of jailhouse sessions with this guy, but hey – he’s in prison. How hard could it be?