Disclosure: I received a copy of this in pdf form from James Smith.
This is a single page, double-sided, which would presumably be printed using a C-Fold or Z-Fold. It was, to my understanding, designed for quick pick-up games at Wayne Con. As such, it offers a greatly simplified system, which might be considered a cousin of Dungeon Crawl Classics. Mechanics, and even statistics, are different. As a result, I am giving this an Honorary listing. It is clearly based off of DCC, but it is its own animal.
The adventure itself is, quite literally, smaller than a one-page dungeon, being confined to less than a half panel of one of the three panels created by folding the page. Stats, plot, and information are minimal, befitting its use for pick-up games.
I am not sure where you can get this, apart from asking one of the authors for a copy. If you have the ability to attend Wayne Con, you might even be lucky enough to have a chance to play it!