This Agent 4 is a hallucination telling you to go into the water, she isnt real, but for some teason if she wanted too she could grab you. If you dont come into the water, she will drag you in herself. She claims the water is harmless despite it instantly killing inklings and she knows this. The disease grows in your body as she convinces you more and more, she has a wide toothless smile and wide eyes, she sounds exactly like agent 4, she is calm and patient, but she has limits