Nix Nada is a character I invented:
"The superhero with a twist, his power is he don't exist!"
Martin Ralphs and I wrote some stories on this admittedly flimsy premise. More may be coming sometime.
Letters (by Martin)
Nix meets Superman by Martin
Nix pics a Nix Nada story by Martin
Nada Goes to Washington by me
Nix-Net by Martin.