I know this book is almost 30 years old now, but seeing a chance pick-up from a second hand book shop had this in the pile, I read it, and ... here we are.
Like most older readers, I suppose we all know / knew about the TV show, but perhaps, as is the case with me anyway, didn't realise it started off life as a book.
Ok, the premise, great, can't knock it. A demented headmaster using his extra-strong hypnotic powers to begin his quest for national and most probably (in his mind at least) international domination, from a tuppence-ha'penny (in the great scheme of things) high school. Formulaic - certainly, but I never care if it's the standard, I really don't, I simply care whether any one book is good, bad, indifferent, incredibly superb or pulp-fodder after page 7. This is pulp-fodder from page 6.
The problem, as you've probably guessed where my opinion lies, is not with the plot, the basic idea etc, it is purely and totally with the delivery. This was first published in the early 80s. Ok, sort-of a long time ago in some senses, but the 80s were and are considered from a literary point of view to be well clear of the bad dross which passed as kids' books from the previous eras. But not this, sadly. The school-kids involved, both those under the headmaster's power and those who have resisted, are just a la Enid's mob(s) but with tantrum type tempers, that's all, the sub-pot should have sank in the Mariana trench - foster kid not wanted / resented by existing siberlinga - the usual routine - crap. Their dialogue given them by the author, well - stinks, to be perfectly honest. Who the heck, in 1982, would say to themselves - 'I'm going to emulate Enid; the Secret Seven and the Famous Five live again!' Not many, that's for sure, but the author of this must have done. The only thing missing from her character's secret password-infested meetings was the lashings of ginger beer and grannie's excellent seed cake.
Thankfully, TV sometimes has its uses. It can spot promise, even within a terrible book, and the TV series was indeed brilliant, this book - is unspiffingly terrible. Gosh!