Elder Star

"It took place during our attempt to map an underwater anomaly off the coast of Bouvetøya Island. As we descended we saw on sonar what I at first thought were pieces of a sunken glacier, a common occurrence in these Antarctic waters. But that all went out the window the moment we passed by the thing at 980 meters. It hung motionless in the upwards currents coming from an unknown source deep below. I only ever saw the big one, but our instruments pinned hundreds of them all around us spaced out within 1km of water. And just as abruptly as they appeared, they quickly escaped our monitoring within half an hour. Dropping rapidly down to the depth of 4000 meters beyond the reaches of our sonar, never to be seen again."