The book ‘The Boy Who Never Grew Up’ is written by David Handler. ‘The Boy Who Never Grew Up’ is the fifth book in the Stewart Hoag Mysteries series. It is a mystery novel featuring a Hollywood ghostwriter and his basset hound feeling the world of high-stakes divorce. The story is about Matthew Wax, a successful director, and his wife Pennyroyal Brim, who hires a ruthless lawyer for their divorce.