Music by Kevin MacLeod. Available under the Creative Commons Attribution 3.0 Unported license. Download link: https://incompetech.com/music/royalty-free/index.html?isrc=USUAN1200105

MacLeod's description:

Genre: Horror
Time: 4:56
Instruments: Piano, Synths
unknown tempo

There is something in the shadows, it isn't quite perceptible, but you know it is there. This is designed to make people uneasy.

Dark, Eerie, Mysterious

ISRC: USUAN1200105
© 2012 Kevin MacLeod