Book excerpt: Catch up on Mildred Hubble’s magical adventures at Miss Cackle’s Academy for Witches with these reissued editions featuring energetic new covers. Mildred is back in trouble thanks to the new girl, Enid Nightshade, who isn’t as well behaved as she appears. The more Mildred tries to stay out of trouble, the more she finds herself in horrible situations. What can the disaster-prone worst witch do?