Here is a short level I made while I was working on a larger one. Basically it's a dark maze implemented in Knytt Stories. Very short, as I didn't think I could maintain this kind of thing over a long level. Has a few secrets, including one that might be rather hard to get. (If you get too frustrated with it, you have my permission to just look it up in the editor.)
Music is "Evening Fall (Piano)" by Kevin "incompetech" MacLeod. (Licensed under Creative Commons: By Attribution 3.0
http://creativecommons.org/licenses/by/3.0/)