I like it
I think you pin-pointed the mood with your title. It has a feel of shadows and mystery. Good job...its easy to listen to, not cluttered with to much and has a good rythm
get boring to fast
nice loop though
only thing is i would add a different type of beat to it and percussion. it has potential. make it longer and add the finishing touches and you got yourself a master piece!
Please contact me if you would like to use this in a project. We can discuss the details.