Storyline
A scientist uses a device that makes the particles of a living body move at the speed of light, rendering him invisible to the eye. He conducts a series of stunts in order to build up a name for himself so he can them go public and cash in. After forty days he glances into the mirror and realizes that he has aged forty years during that time due to a side effect. He realizes with the little time left to him that he can no longer use his knowledge for selfish gain.
Story Notes
Narrated in the first person. Adam Clayton was mentioned in Marvel Universe (1998 series) which places this story in Marvel continuity. Story is pages 16-18, 20-23 of comic (pages of story numbered 1 to 7).