107 books • 14 series
Book #1: Coot Club
Book #2: We Didn't Mean to Go to Sea
Book #7: Winter Holiday
Book #8: Secret Water
Book #6: Pigeon Post
Book #1: Swallows and Amazons
Book #2: Swallowdale
Book #3: Peter Duck
Book #4: Winter Holiday
Book #5: Coot Club