(2011) Created together with Christian Rupp, a 5-meter high spruce tree hanging upside down, surrounded by 12 sequentially triggered spotlights which create an artificial sundial by casting the tree’s shadow in a circle around the room. The tree slowly dries and fells its needles during the exhibition. Scattered in the room are groups of footprints, and microphones attached to the floor pick up and amplify the sound of visitor’s footsteps.