The books of the seven on adventures together were very transporting in their action and addictive with their infectious enthusiasm, when I borrowed them in bulk from my school library. The relationship of the characters with their pets and the world around them gives these books ample dangerous situations along with comic relief. I just loved them and sometimes read two of the seven's books in a day during summer holidays in school.
The sumptious breakfasts, the colourful escapades, the wild plots figuring stowaway scientists, rebels, kidnappers and what not - these are the settings that await a reader of enid blyton, at least some which I remember the best. What sets these children apart is the strength of their group and the compassion they have towards all things natural and innocent. They are real world children who are quick thinking and innovative in new and sometimes dangerous situations. They are fired with a passion to bring about change where it is needed and stop wrongdoing where they see it. They leave no one behind and their exploits are extremely understated at home.
The famous five had a slightly different evolution as a street-smart, cohesive gang, but that's another story.
Secret Seven series.
Best for the the age group of 8-13, if you are thinking of gifting it to someone.
Best for a light read when trying to relax on a long noisy flight, any age.