Morning, or "morning" as this city of flesh and blood defines it, always begins with a low pulse. The fleshy membranes of the walls expand and contract rhythmically, making a slippery crawling sound, pumping filtered, oxygen-rich air into the room. Embedded in the walls are fluorescent glands—jellyfish-shaped, glowing symbionts embedded in the flesh—that pulse and gradually light up, simulating the soft, gradual glow of a sunrise.