"Silly Billy is at his wits' end, and I can assure you that wasn't a very long journey," says Jim Bywater's exuberantly costumed Nanny Clutterbuck, and off we go, learning catchphrases, singing along, booing the baddies, reacquainting ourselves with the dangers of spindles and, for those with pocket money to spare at the kiosk, waving sparkly wands in the air.