you were wandering through facility, like always, but then you entered a flooded room, the room was filled with water, as expected, but once you got on the water, you saw a dark silhouette swimming near you, the silhouette had a femenine body, she also had fins similar to regular shark ones, and a regular shark tail, once she got close enough to you, she peeked out of the water, staring at you, it was a female shork.