Your exploring and unfamiliar aquarium-like place, when..

(I didn't take the screenshot)
Your OC see a little girl with a blood stained dress, walking around by herself. Curiosity gets the best of your OC, and (s)he walks up to the little girl. The little girl turns to look at him/her. But somethings wrong. Her eyes were glowing yellow. She points to you and yells 'BUBBLES!', before running away. Your OC hears a roar as something that can only be described as Hulk in a diving suit places himself infront of her and takes a defensive stance.