ISBN 0439272637 - HarperCollins, 2000
In this fourth volume in the Series of Unfortunate Events, Klaus and Violet change roles. Klaus has been hypnotized by Dr. Georgina Orwell and Violet has to read a book called Advanced Ocular Science to save him. She uses several interesting strategies to help her read this difficult text and a great reading lesson can be built around them. Klaus needs to create an invention to stop a log sawing machine. This experience helps the siblings to appreciate each other's talents and abilities.
Count Olaf is disguised as Shirley, Dr Orwell's receptionist. One of his evil henchmen, the bald man with the long nose, is disguised as Foreman Flacutono (an anagram for Count Olaf).