The Mystery of the Hidden House

Mr Goon's nephew, Ern, has disappeared on the road to "Harry's Folly". Does the gatekeeper, Mr Peters, or Mr Holland know anything about it? The Five Find-Outers and Dog are determined to solve the mystery.

The sixth mystery is, I think, the best so far—maybe even the best in the whole series although I should reserve judgement until I've re-read them all; it's been over twenty-five years since I owned these books, and I can't remember many of them. But compared with the previous five mysteries, this book is like the feature film version of a popular TV series: the 2-hour special, presented in wide screen. It dares to go a little further than normal, providing a new major character called Ern (Mr Goon's gormless nephew) and a fake mystery dreamt up by the Find-Outers—not to mention the real mystery in the background, which in itself is a huge racket involving a giant-size gang of baddies and a massive James Bond-style underground garage where stolen cars are repainted and sent back out for sale. Everything in this book seems bigger than normal, including Mr Goon's foul-ups.