Look Out, Secret Seven: Book 14

Fun For The Secret Seven: Book 15

Good Old Secret Seven: Book 12

Good Work, Secret Seven: Book 6

Secret Seven Fireworks: Book 11

Secret Seven Mystery: Book 9

Puzzle For The Secret Seven: Book 10

Three Cheers, Secret Seven: Book 8

Secret Seven Win Through: Book 7

Secret Seven On The Trail: Book 4

Secret Seven Adventure: Book 2