The Bells of Enigma is a song that makes its debut in the thirteenth Dark Parables game, Requiem for the Forgotten Shadow.
In-Game Appearance Edit
Requiem for the Forgotten Shadow Edit
In this game, the song is used as background music for puzzles and FROG scenes. Its title doesn't seem to be a reference to anything in the Dark Parables universe.
To download the song for yourself, go to the Bonus Content in Requiem for the Forgotten Shadow and select the red circle button below the song. To listen, simply click the play button in the info-box above.