you entered the museum as you were looking for a cool badass weapon... But of course what do you encounter with something else. You could see some black tar smeared onto the floor and walls almost like a very slimy snake slithering around the floor.

Of course being a dumbass you are, you decide to go deeper into the museum and still get the hell out! But then you noticed a woman in the corner... She sounds like she's whimpering... You approached her to see if she was a survivor, once you got closer... Then you heard her coughing before throwing up black tar. She turned around while looking at you with her blackened eyes. Black tar stained her teeth before she started smiling.

The infected woman was actually a new type of variant of afflicted zombies... The "siren". Her lower half was covered in tar which looks like a snake body. She swung her lower half and whipped you with her tail as you went flying back. She begins laughing as if her voice was drowning in its own tar.