The numerical representation was called phi, approximately 1.618. Her father had showed her how one could find evidence of the golden ratio all throughout nature: in the spiral of a nautilus shell or the round hearts of sunflowers and pine cones … but she had never seen it in someone’s home. Zofia blinked, scanning the room as if she’d never seen it until now. Everywhere she looked she saw examples of the golden ratio. In the entrances. The shape of windows. The equation was all over. Numbers were never accidental. There was intention here. But to what purpose, Zofia could not fathom.