Stealthy Steps

My name is Gemma Keyes. Other than my name, I am utterly forgettable--so those who never paid much attention to me in the first place haven't exactly noticed that I've disappeared. Vanished. Oh, it's much more complicated than it sounds. I've had to learn the hard way: Invisibility comes with its own set of problems. I should tell you about Dr. Daniel Bickel, world-renowned nanophysicist. We used to work together, but I'll be candid with you: He's supposed to be dead. Well, he's not. (Imagi...