An autonomous drone alights on the ocean of an unexplored planet. It skims across the water, recording echolocated data. Its signals alert an aquatic techno-organic being that swims up towards the surface to investigate. The drone and the being regard each other curiously. They swim through the waves, chasing after each other. The being then retreats to the depths, leaving the drone alone. Rather than return home, the drone elects to purge its battery. Its energy depleted, it shuts off and sinks deeper into the water, descending down into the darkness.