Overview
Bonfires and Broomsticks is a 1947 children's book by Mary Norton. Parts of the book were adapted into the 1971 Disney movie Bedknobs and Broomsticks.
Synopsis
Two years after the events of The Magic Bedknob, Carey, Charles, and Paul convince their mother to let them stay with Miss Price again. Using the bed knob, they travel back in time to the reign of Charles II, where they meet a friendly necromancer called Emilius and bring him back with them.
Omnibus
The book and its 1944 predecessor were combined into the omnibus Bedknob and Broomstick in 1957, illustrated by Erik Blegvad.
References
From Wikipedia (CC BY-SA 4.0).