Author(s): Jill,1949-autho Murphy Published by: Puffin, 2013 Binding: Paperback In the 5th 'Worst Witch' story, Mildred's class has a new form teacher - no more Miss Hardbroom! But then the new teacher, Miss Granite, starts acting very fishy, Mildred has a very bad hair day when a hair growth spell goes wrong, and her beloved cat Tabby is having a nervous breakdown and refuses to fly.