The Mennyms--mother, father, grandparents, and five children--live at Number 5 Brocklehurst Grove. There"s a secret at Number 5, and it isn"t Miss Quigley lurking in the cupboard or the mystery of Pilbeam in the attic. There is a startling deception that if exposed would threaten the family"s very existence.The Mennyms--mother, father, grandparents, and five children--live at Number 5 Brocklehurst Grove. There"s a secret at Number 5, and it isn"t Miss Quigley lurking in the cupboard or the mystery of Pilbeam in the attic. There is a startling deception that if exposed would threaten the family"s very existence.