London's most workaholic street artist is at it again. Over the weekend, Ben Eine began repainting the Holywell Lane wall of Village Underground, the raised enclave of studios housed in old Tube carriages. He's currently putting the finishing touches to the new piece, which cryptically reads 'CALCULATE'. Eine is no stranger to this particular collection of bricks, having twice before layered his giant letters onto the selfsame wall. We've previously mapped his existing work (and are still looking for any additions).