Neighbourhood WitchPaul Stewart
Gran'ma has moved in, but because things always go wrong when she's around, Thomas's mother is at her wits' end and threatens to send her to a home. Gran'ma gets a magic kit to try to make things happier in the house, and although Thomas discovers she is really a witch, her powers are rather rusty.
Paul Stewart (born 1955) is a writer of children's books, best known for the bestselling The Edge Chronicles, the Free Lance (A Knight's Story) novels and the Far-Flung Adventures series among others. Many of his books are illustrated by Chris Riddell. Paul Stewart lives in the Seaside town Brighton with his wife and children.
Paul Stewart. Wikipedia.