During the 2012 European Architecture Student Assembly, I joined a group of 12 to create a small pavilion investigating the control and manipulation of light. Designed and built collaboratively over 2 weeks in Helsinki, the project centred on this Northern city’s long summer days - where residents experience near-constant sunlight. The visitor peels open a 7 metre long pivoting wall and steps inside the narrow space, the door closing behind to create a near-total darkness. At the far end, a counter-weighted tilting wall gives the user direct, bodily control over the amount of light entering the structure.