Cărți audio realizate by Walter R. Brooks

Freddy the Detective

Freddy the Pilot

Freddy Goes to the North Pole

Freddy the Politician

Freddy and the Dragon

Freddy and the Baseball Team from Mars

Freddy and Simon the Dictator

Freddy Goes to Florida

Freddy and the Flying Saucer Plans

Freddy and the Space Ship

Freddy and the Ignormus

Freddy and the Popinjay

Freddy and Mr. Camphor

Freddy and the Bean Home News