Ysyakh is the Sakha summer solstice, kept on open meadow outside Yakutsk. Its object is the choron — a kumis cup turned from one piece of birch and banded with carving: rim and throat for the Upper World, body for the Middle, foot for the Lower. Three worlds stacked in a hand's width of wood.

This system takes that stacking literally. The ground is aged honey birch, not paper. Every panel divides into rim, body and foot. Sky-blue — the colour the Sakha flag names outright — carries every action. Nothing floats; things are cut into the surface.