The following account was recorded in the agent's log during your transmission: Sunbeams cut through a dense canopy of kelp above me, casting dappled shadows on the undulating, iridescent scales of some enormous, deceased fish... like, half-buried in the fine, silver sand of a submarine trench. A faint hum resonates through the water, which is somehow flowing upwards from the sand and into the fish's gaping mouth, forming a tiny whirlpool that's sucking in nearby sediment. The water pressure's intense, but it's eerily still, with no signs of marine life anywhere. The fish's tail fin is somehow protruding from the wall of a nearby, perfectly circular tunnel.