You, and 8 return to the floor where the mess started, wondering if Dr. Steinburg might be in there, considering her office was on the exact same floor as it. As you go further onto the floor, you dodge the room you were just in, that now had vines coming out of it, and know that you should never go back inside it.
You then pass a guard that was about to go inside, and save the president, but he got stabbed by some vines with thorns around his head, that extended, and pierced his heart causing his blood to fall out. Wanting to protect yourself, you grab the rifle the guard was carrying, and use it to defend yourself, while also giving 8 the key card Mrs. Lethal gave you. "Don't worry, 10," 8 explains. "I won't run off with this. I'll just let you protect me from the transformations, while I open the doors to each room. Now let's find Dr. Steinburg."