Christianna Brand children's book series
The Nurse Matilda books were written by the British children's author Christianna Brand (1907–1988) and illustrated by her cousin, Edward Ardizzone. The books are based on stories told to the cousins by their great-grandfather. They concern a hideously ugly witch known as Nurse Matilda who has been highly recommended to Mr. and Mrs. Brown as a nursemaid by several agencies. Nurse Matilda arrives a... Wikipedia