The Mystery of the Indefatigable Ink — Elizabeth Arthur

What's erased isn't always gone-and ink never forgets. When Jupiter meets Russian émigré Annika Vasiliev, he agrees when she asks him to help the great-grandson of a famous Russian actor who fled his country after the Russian Revolution. But he, Pete, Bob, and Mallory become truly intrigued when they discover that, after the actor's screenwriter son was falsely accused of being a Communist and blacklisted from film, he became a wildly successful mystery writer who also wrote a literary novel - now missing - about his parents' escape from the Soviets. Soon the hunt is on for a great lost novel that malevolent forces hope to destroy before it ever sees the light of day!