Libro 3
Ripley Twists: Mighty Machines
Ian Graham
Libro 4
Ripley Twists: Space
Dr. Mike Goldsmith
Libro 5
Ripley Twists: Extreme Earth
Clint Twist, Lisa Regan & Camilla de la Bedoyere
Libro 6
Ripley Twists: Sports
Geoff Tibballs
Libro 7
Ripley Twists: Oceans
Camilla de la Bedoyere
Libro 8
Ripley Twists: Dinosaurs
Rupert Matthews
Libro 9
Ripley Twists: Brutal Beasts
Camilla de la Bedoyere
Libro 10
Ripley Twists: Sharks and Other Scary Sea Creatures
Camilla de la Bedoyere
Libro 11
Ripley Twists: Spiders
Camilla de la Bedoyere
Libro 12
Ripley Twists: Whales and Dolphins
Camilla de la Bedoyere