Where is the Crystal Source? Can one dig an underground tunnel from Hong Kong to the secret site of Wendigo River? Last year, artist and Torrent contributor Florian Germann sought to do just this with his sonic sensitive digging tools. Watch the recently released short documentary on his adventurous night performance at Kowloon’s former aviation site, during From Dusk Till Dawn (the Burger Collection’s full-day of real-time activities held in May 2013).