In giving a visual language to E.B. White's The Door, I decided to make tangible the "insoluble problem" of the doors always being switched. I built a block out of eight triangular pieces and hinged them together with canvas. The block has no beginning nor end, as one indeed finds out after several minutes of use. Thus, the journey through folding the block becomes about just that, folding the block. Each fold opens a circle, which is symbolic for the doors (or cards) in the story, and each circle is replaced by another.