Schoolgirl, Hannah Knight, of Brianscourt Boarding School, is in the power of sinister Professor Vaslav, who has a dematerialisation machine that can transfer living creatures from one place to another. With this amazing machine, he has even made Hannah pass through solid walls! Hannah is unaware that she is being used for experiments, as the professor uses a special lamp to hypnotise her. Hannah’s friend, Sue Sheldon, suspects the professor and, when Hannah disappears from the dormitory, Sue cycles to the professor’s house.
- What Happened to Hannah? – Judy: #326 (09 April 1966) – #334 (04 June 1966)