Gemini 3: An invisible man wandering in the night.
TITLE: PENETRATION INTO MYSTERIES
Although he was invisible, when he looked down he could see his footprints forming in the grass as he walked. He wore shoes on his nightly outings, which was not a problem, for anything he put on also became invisible for the time that he wore it. Dawn always brought, gradually, the return of visibility, and a fading of all memories of the night before. Which made him not only invisible in the night, but made his night self invisible to his day self as well.