Dunkum's new basketball has been signed by his hero, David Robinson. Now Dunkum spends all his time playing with the ball. He's much too busy for his Cul-de-sac friends.When the ball disappears, Dunkum finds a secret code. Someone with a weird name has stolen the basketball! And he's leaving messages everywhere! Who is the mysterious Case D. Luc? And will the codes lead Dunkum to his treasured ball?
