"She is all-powerful. She is without mercy. All other Witches are petrified of her."
"My orders are that every single child in this country shall be rrubbed out, sqvashed, sqvirted, sqvittered and frrrittered before I come here again in vun year's time! Do I make myself clear?" - The Witches
Witches are all pretty scary. They live in plain sight, disguised as normal women, but their hatred of children (who smell to them of dogs' droppings) is all-powerful. Beneath their wigs and gloves and badly-fitting shoes, they are itching to get rid of any child unlucky enough to cross their path.
So, when The Grand High Witch descends on the same Bournemouth hotel where the boy is staying with his retired witchophile Grandmother - and brings with her the recipe for Formula 86 Delayed Action Mouse-Maker and a plan to wipe out all the children of England - she must be stopped...
In the 1990 film version of Roald Dahl's The Witches, The Grand High Witch was played by Anjelica Huston.
After tventy-six seconds, child is not a child any longer. It is a mouse!
The Grand High Witch 1