Used book – Alice and the Jack of Spades, Caroline Quine

Owner of Chicago's largest department store, Mr. Fitzhugh is living a nightmare. A sinister prankster seems intent on ruining him! It all started with harmless jokes, the kind you find in a joke shop, but now the twisted individual is targeting customers... Can Alice, called to the rescue, unmask this vandal who signs all his acts of sabotage with a jack of spades?