Playing with death

Summary: "FBI Special Agent Rose Blake has faced evil and survived. Haunted by a failed undercover mission, she is finding it hard to shake the memory of her close encounter with a ruthless serial killer - one who is still free, and could come for her at any time. The call to investigate a suspected arson attack is a welcome distraction. It's not the kind of case usually assigned to the FBI, but nothing about this crime is usual. As Rose digs deeper, she finds herself confronting the kind of imagination her son might see in the fantasy worlds of his video games. But when your opponent is a killer, nothing feels like a game..."