This story is told in the form of letters, from Freddy and his parents and also some of the other characters. What the reader knows, but Freddy remains clueless about, is that his parents are not actually sprout farmers but secret agents on the tail of the mastermind criminal Dr Alpha Bett. This is the joke of the book, that Freddy never realises what is going on and yet somehow manages to save the day by accident. The book is delightfully doodled and illustrated by Jack Noel in much the same way as Freddy would have done and this adds to the joy of the letters and postcards he sends…