80 books • 13 series
Mars (Space Explorer)
Jupiter (Space Explorer)
Earth (Space Explorer)
Hombres Lobo (Un Poco Escalofriante)
Vampires (A Little Bit Spooky)
Gray Wolves (Awesome Animal Lives)
Dolphins (Awesome Animal Lives)
Eagles (Awesome Animal Lives)
Vampiros (Un Poco Escalofriante)
African Elephants (Awesome Animal Lives)
Red Foxes (Awesome Animal Lives)
Sea Turtles (Awesome Animal Lives)
Área 51 (Un Poco Escalofriante)
Werewolves (A Little Bit Spooky)
Bulldogs
Pugs
German Shepherds
Chihuahuas
Beagles
Labrador Retrievers
Indy Cars (Wild Rides!)
Stock Cars (Wild Rides!)
Sloths (Awesome Animal Lives)
Ring-Tailed Lemurs (Awesome Animal Lives)