Tony Quinn is "Prof. Hasdane" - a genius boffin who has adapted a pen so it can act as a devastating bomb. He is also, however, your archetypal absent-minded professor and when he accidentally leaves his case in the back of a taxi he must hastily track it down. This investigation exposes the rather naive academic to some of London's less scrupulous population who are all too keen to take the old chap for a ride - physically and metaphorically. There is something he is especially worried about - this pen has a trigger. If it hears bells then... boom! Harry Fowler ("Sammy") and Sydney Tafler ("Hu... read the rest.