Mr Majeika and the School Inspector

Know about the book -

Mr Majeika and the School Inspector is written by Humphrey Carpenter and published by Penguin UK. It's available with International Standard Book Number or ISBN identification 0141944358 (ISBN 10) and 9780141944357 (ISBN 13).

'Use of magic by teacher strictly forbidden.' Poor Mr Majeika goes to the bottom of the class when the school inspector comes to call. Things don't get any easier when Mr Majeika turns himself into a lobster by mistake. Class Three somehow has to get Wilhemina Worlock to undo the spell...