A captivating ghostwriter hires Magnum to recover stolen notes for her biography on elusive millionaire Harold Farber, a man she’s never met, known only through cryptic phone calls. As they probe the theft, meant to bury the book, they unravel a chilling mystery. Meanwhile, T.C.’s lucrative but dubious piloting gig—delivering chemicals to a high-rise—leads straight to the heart of the enigma, entangling them all in a dangerous conspiracy.