33 books • 11 series
Spies, Incorporated (Spy from Outer Space, #4)
Escape from Earth (Spy from Outer Space, #3)
Three Little Witches and the Christmas Ghost
Three Little Witches and the Two-Day Spell
Three Little Witches and the Blue-Eyed Frog
Thurgood Marshall (History of the Civil Rights Movement)
Davy Crockett
Too Many Spies (Spy from Outer Space, #2)
Alien Alert! (Spy from Outer Space, #1)
