Portail des médiathèques du réseau Paris-Saclay

The Magic Finger by Roald Dahl is the story of little Lucy and the bad Greggs family. . . The Magic Finger is something I've been able to do all my life. I can't tell you just how I do it, because I don't even know myself. But it always happens when I get cross . . . and suddenly a sort of flash comes out of me, a quick flash, like something electric. It jumps out and touches the person who has made me cross .