Specimen 13 resembles a young white woman with shaggy, grey hair. Before the chase, she is seen sitting on a floating crate, with her back to the player, wearing a towel around her waist. She reveals her true form during her death screen, where she morphs into a black-eyed elderly woman with long sharp teeth.

Specimen 13 lurks within the flooded rooms of Room 910. She quietly sits on top of a floating crate. When you’ve  gotten too close, she will dive into the water and begin the chase.