Just as Clara and the Doctor reach the base of the tower, a red telephone box falls from the sky and lands on the tower Eiffel. A girl with blonde hair tied up into a ponytail opens the door of the telephone box, and leans out into the air, tipping the phone box to the side.

"Father?" she yells, scanning the city. Once she sees the Doctor she steps back into the telephone box. The box disappears and reappears at the bottom of tower, and out steps the same girl. She walks toward the Doctor and Clara and stops a few feet away.

"Jenny . . . .?" the Doctor whispers.

Jenny winks at him and says, "Good afternoon, Father! But please, I go by Jenn now."

A scream comes from the TARDIS, breaking Jenny and the Doctor's reunion. Clara, Jenn and the Doctor turn in the direction of the scream.

***

Meggie screams.

"Calm down, Meggie! The door is wood, we can just break it! See if you can find an axe!" Eli orders, trying to console her friend, but failing.

Shaking, Meggie walks up the metal steps and towards the console. As she walks past the console, she flips down a switch. The TARDIS shakes and makes a loud roaring noise. Meggie and Eli collapse onto the ground and grip whatever they can. Outside, the TARDIS disappears.

***

"Clara, we should head back to the TARDIS." says the Doctor, obviously worried-but very curious-about the scream they had heard only seconds ago.

"Wait!" stops Jenn, "I've come to warn you, Father." Clara and the Doctor stop in their tracks.

"What is it, Jenn?" asks the Doctor, emphasizing "Jenn" with his Scottish accent.

"You are being tracked by an Alienoat. Do you know what it's name means, dad?" Jenny asks questioningly. The Doctors face freezes as he translates it.

"What, Doctor, what?!" asks Clara.

"Alienoat is Lothearasion for 'the Doctors Worst Nightmare'. An Alienoat can morph into a Dalek, Cyberman, Ice Warrior, Sonatarian, Silence, Jadoon, Weeping Angel, Auton, and they are also associated with the Shadow Proclamation, which makes it worse." explains Jenny. "It really is the Doctors worst nightmare." she sighs. "Well, I'll be off."

"Wait!" says the Doctor. "I-where did you get your TARDIS?"

"Oh, I stole a space capsule and traveled to Mars. There was this nice man, and he gave me his homemade Vortex Manipulator-well, I kind of stole it. Then I made a quick escape back to Earth, transferred the Vortex Manipulator into a telephone box-which I found sort of funny, because yours was a Police Box-and viola! It's not bigger on the inside, but it can still travel, time-and-space wise. "

"Ahh, so basic transformation." mutters the Doctor in realization.

"Um . . . . Doctor? That is all very interesting, but, am I the only one who remembers the scream?" Clara reminds them, frantically. They all rush to the TARDIS-or where the TARDIS used to be . . . .