The Secret Seven: ""Secret Sseven Win Through"", ""Three Cheers, Secret Seven"", ""Secret Sseven Mystery""
Enid Blyton
Three Secret Seven stories in one volume. In ""Secret Seven Win Through"", Jack’s little sister helps the Seven to catch an intruder. In ""Three Cheers, Secret Seven"" the team discover someone is hiding out in the abandoned house, and a girl runs away from home in ""Secret Seven Mystery"".