When night fell across Mara’s apartment — a big, patient bird of a city window — the walnut warmed with the smallness of two lives. Mara learned how to make a tea that did not steam away the edges of a world so delicate: steep the petals, let them cool in the hollow of your palm, lift with a pin. Thumbelina drank with satisfaction and taught Mara the language of tiny things: a nod meant permission, a tilt meant danger, and touching the rim twice in quick succession meant promise.