Bed-Knob and Broomstick (Vintage Paperback) by Mary Norton

When the witch next door falls off her broomstick, it's the start of an amazing adventure for Carey, Charles and Paul.

Her spell turns out better than she'd hoped, and gives the children an enchanted bedknob which whisk them off anywhere they want, even back in time.

This used paperback has noticeable wear due to age.