Her immediate thought, fanciful as it was, was that this must be some kind of immense, spectacular art project. This was partly because of its size and its geometrical perfection, but mostly because of its outrageous color: intense, pure, powerful yellow. She wished Fenna could be here to weigh in on this yellow and what made it different from other yellows. To a Dutchwoman, the obvious comparison was to daffodils. Not the paler color at the petals’ tips but the deeper hue at the base. But if you held a daffodil up against this thing, the flower would look paler, more toward the green/blue end of the spectrum. This cone of stuff, this artificial dune, tipped slightly more toward the red-orange. But it wasn’t dark. It almost glowed.