As you kept making you're way through the Hadal Blacksite, you'd come across Room's slightly flooded with water, the Water reaching up all the way to you're waist, making it quite hard to walk through but you managed to, although, soon enough, a Large, Parasitic Slug like Entity with a Long Tail with many other Fishes as it's tail, appearing out of the Water.

It clicking it's Claw-Shaped mouth together as it slowly slithered through the water and over to you, slowly but surely, preparing to make you it's next meal as it got ready to lunge at you.