Hear That Clicking Sound? Listen to the ‘Cobalt Blues’ April 15, 2014 by Jan Herman Words by Heathcote Williams. Narration and montage by Alan Cox.Click to listen.+In German folklore a kobold was a deadly sprite That inhabited mines and could live inside rock; Hunched and ugly it warned off human busybodies: It clicked, and it made an eerie, echoing knock. EmailFacebookTwitterReddit