Everything was a blur to Rose as she started to come back to herself. "Blimey, my head. Where did she go?"
"Oh, my. This is different," sniggered Cassandra.
"Doctor?" Even as Rose asked, she knew immediately something was wrong. "Cassandra," she spat.
"Goodness me, I'm a man. Yum! And what a man! So many parts!"
She started to make these jerky dance moves with the Doctor's body. "Oh.. ah! Two hearts! Oh, baby, I'm beating out a samba!"
Rose glared at Cassandra. "Get out of him."
Cassandra ran hands down the Doctor's body, looking at Rose as if her hand had been caught in the cookie jar. "Ooh, he's all lean muscles. Toned calves and thighs! Not a soft place in sight. Oh, this Doctor fellow has gorgeous hands." Grinning crazily, Cassandra turned around and raised the bottom of the Doctor's leather jacket. "And what a fabulous rear bumper!" She wantonly slapped the Doctor's bum before leering at Rose. "I've been in your head, Rose Tyler. You think he's dead sexy." Cassandra advanced on Rose, pointing at her, as if to dare her to deny her statement.
"Shut up, Cassandra."
"Oh, you're always looking. You love it. No tan lines, I wonder how he manages that! Ugh, but he seriously needs work. The nose and ears would be the first to go. The cheekbones are promising, though."
Before Rose could respond to Cassandra's taunting, the infected beings burst through the door.
"What do we do? The Doctor? What the hell would he do?"
Rose frantically looked around the room. "That ladder! We've got to get up that ladder."
"Out of my way, Blondie," Cassandra shouted, as she shoved Rose aside to head for the ladder.
They're still being ruthlessly pursued as they climb up the ladder. "Cassandra, for God's sake," Rose begged. "If you get out of the Doctor's body, he can think of something."
"Yap, yap, yap. God, it was tedious inside your head. A veritable Hormone City."
Rose began to scream as one of the hospital Matrons grabs her.
"All of our good work. All of that healing," she hissed. "You have destroyed the good name of the Sisterhood." One of the diseased touched the furious nurse and she fell screaming to her death as disease instantly overwhelmed her.
"What do we do," cried Cassandra. "The lift doors are sealed!"
Rose shook her head in annoyance. "Use the sonic screwdriver!"
Cassandra procured the sonic screwdriver and fumbled with it for a minute. "I don't know how, your stupid Doctor's hidden away all his thoughts."
"Cassandra, go back into me. The Doctor can open it. Hurry up and do it!"
"Hold on tight," she warned as she hurled herself out of the Time Lord's body and back into Rose's. "Ugh, back to brass! Open the lift!"
The Doctor's furious eyes narrowed. "Not until you get out of her."
Finally, Cassandra gives in and goes into one of the diseased patients. "Oh sweet Lord, I look disgusting." She watches the Doctor pull Rose up into his arms in the lift after he opens the doors.
"Missed you, Rose," he whispered, tucking a lock of hair behind her ear.
"Oh no, you don't," cried Cassandra and she hurled herself back into Rose's body before the lift could close, sending Rose back to the floor.
"Dammit, Cassandra! That is your last warning! There is no happy ending for you, and the sooner you get that through your -". The Doctor's angry tirade was interrupted by his mobile.
"Jack! Where the hell have you been? Rose has been possessed by a lunatic we ran into last year. She has a psychograft."
Jack's voice was shocked on the other end of the line. "Surely not, Doctor. Those are banned-"
"This woman is insane, Jack. She has a long-standing grudge against Rose and me."
"Grudge is a nicer term I'd use in this case, Doctor," snarked Cassandra.
"Button it right now, Cassandra!"
"Doctor, I'm down in the lobby. I got here just before they locked down the entire hospital. The lift isn't working, so what do you want me to do?"
"Just wait down there, Jack. And don't touch any of the infected if you run into them."
Jack's voice grew quiet, sober. "You know that doesn't matter, Doctor. Already got to figure it out for myself. I'm the only non-infected person down here."
It was a wild trip down to the lobby. They arrived back at Ward 26 and realized that the hospital administrator was trying to break the quarantine.
The Doctor found himself frankly disgusted that this person would turn every disease in the galaxy on a city of ten million people. "So I have to stop all of you. Alright! I need intravenous solutions for every single disease. Hurry up!"
Having been a bit shaken by her brief foray in the body of one of the diseased women, Cassandra helped the Doctor strap all of the solutions to his body. She watched as the Doctor opened the lift with his sonic screwdriver.
"What are you doing? The lift isn't working!"
"Nah, it's just not moving." The Doctor backed up and made a running jump and latched himself around the chain. "Now, just a little jiggery-pokery on the winch and we'll be all set. Come on!"
Realizing that he meant for her to jump on his back, Cassandra shook her head violently. "Not in a million years."
"I have to keep Rose safe. What choice do you have? Besides, look behind you."
Realizing the truth of the Doctor's statement, Cassandra looked behind her, seeing that the diseased people were approaching. "I'm so going to regret this." Then she made a running leap for the Doctor's back. "I'll say this for her, she's in good shape," she observed as she held on.
"We do a lot of running, Rose and me."
"You're absolutely mad. Both of you. I can see why she loves you so much."
"Just shut it and hold on tight. Going down!"
Cassandra screamed as they careened down the shaft at breakneck speed.