The World's Worst TeachersA delightfully dreadful collection of the most gruesome grown ups from the phenomenally bestselling David Walliams and artistic genius Tony Ross Think your teachers are bad? Wait until you meet this lot. These ten tales of the worlds most splendidly sinister teachers will have you running for the school gates. Dr Dread teaches science and is half man, half monster! And watch out for the always furious Miss Seethe shes on a detention rampage! From