Ben Kalland from Finland has written a novel with JDub - and JW HQ - as context and it has been translated to English. It is called "Ellen's song". You can find it in Amazon.
Here is the plot:
A talented violinist. A horrifying accident. An unknown daughter.
Finland, years ago: Markus and his three sisters spend their childhood summers at a cottage by the sea. Younger sister Ellen is heading toward an international career as a violinist. But tragedies strike. One icy night Markus' friend drowns in a horrible accident. One of the sisters is banished from the family, Ellen’s violin is silenced forever, and Markus leaves the country.
New York, present day: Markus has made a career as a top-ranked elder in the Watchtower Society. Then one day he receives a letter from a woman who claims to be his daughter. He is compelled to revisit his family’s history—and he realizes that he will have to face the truth about what happened to his best friend and to his talented sister.
Ellen’s Song is a captivating story about the love of music, thirst for power, family secrets, and finding the truth.