The invisible Matilda Mudpuddle

Matilda Mudpuddle looked in the mirror and had a big shock. "I've gone!" she exclaimed in alarm. "I've disappeared! I've left the face of the earth!"
Matilda's intrepid grandfather has been to the Bahamas. Knowing Matilda just loves jelly babies, he brings back some special blue ones. So special, in fact, that they make her invisible! This only lasts for three hours, but that her gives plenty of time to have some serious fun - tickling teachers, teaching some beach bullies a lesson and even helping to nab some nasty bank robbers!