Ben is still missing his beloved granny—Scrabble champion, cabbage lover, and secret jewel thief known as The Black Cat. Her daring days are over… or so he thinks. When priceless treasures start vanishing around the world, all the clues point to the return of The Black Cat. But that’s impossible—Granny’s gone. Or is she? Ben is pulled into a new mystery that could change everything he thought he knew.