The TARDIS lands in a suburban neighborhood, of course drawing no attention. The Doctor and Donna step out, and to his great dismay he can't sense that anything is wrong. It seems like a plain old quiet day, maybe rain later.

"Nothing's wrong!" He shouts, looking kind of sad.

"So, I met Rose?" Donna asks, looking confused. "But I thought she was in another world?"

"A parallel universe, yes." The Doctor mutters, looking around. "So if she could break through from her world to yours, then all the walls of the universe are breaking down, which means-"

"Doctor!" I yell, waving at him. He turns to look at me, and I can see the broad grin on his face even at a distance. I run at him, throwing my arms around him when I reach him. He lifts me off the ground, spinning a little.

"Donna," He looks over my shoulder, still keeping a tight grip on me. "this is Sadie. Sadie, I've told you about Donna."

He turns us around so I can face Donna, although I have to stretch to see over him. "Nice to meet you, finally." I can't help but giggle a little as the Doctor kisses my neck, his spiky hair tickling my skin.

Donna regards us, amused and a little accusing. "I didn't know you had a girlfriend, Space Boy."

The Doctor finally puts me down, his smile faltering slightly. "Well, um, it's fairly recent…" He lies, scratching the back of his head.

"Liar." I smirk at him quickly before turning to Donna. "I've known him since he was with Rose, I bet you've heard about her."

"Yeah, I know Rose." Donna looks at us, confused again. "Did you travel with him?"

"No." The Doctor and I say in unison.

"But I'm ready now." I look up at him, twining my fingers with his.

His jaw drops slightly, and Donna takes this as her cue to walk quietly back into the TARDIS. "Really?" He whispers, taking my other hand in his.

"Really." I reach up on the tips of my toes to kiss him, his nose brushing mine softly as he tilts his head.

"It's gonna be dangerous." He whispers, keeping his lips against mine as he speaks.

"I know." I run my tongue against his lower lip, sliding my arms up his back to bring him closer to me. "You're worth it." I feel his lips curl into a smile against mine, his arms wrapped securely around my waist. I run one of my hands through his hair, hearing a very satisfying crunch as my fingers disrupt the hair gel.

"Oi! Come on you two!" Donna shouts, holding the door open for us. "I'm having none of that on my watch." Her tone is serious, but there's a playful smile tugging at the corners of her mouth.

"Keeps you in line, I like it." I nudge the Doctor's ribs with my elbow, pausing in the doorway to his TARDIS. "Are you sure I can come? I don't want to just barge in…"

"Of course I want you to come." His hands in his pockets, he steps closer to me. "I've been waiting for this since the day I met you."

"I'm sorry it took so long." I murmur, my hands finding his hips.

He grins, leaning down to press a quick kiss before leading Donna and I into the TARDIS. "So! You already know the deal, travels in space and time, bigger on the inside." He pulls some levers and presses some buttons, running around the console.

"He does that to look clever, doesn't he?" I ask Donna quietly, grinning.

"All the time!" Donna laughs loudly, making the Doctor look over at us curiously. "I swear, half those buttons don't do anything."

I laugh, leaning against a pillar for support.

"Hey, are you laughing at me?" The Doctor accuses, shoving his hands in his pockets.

"Yes." Donna and I laugh together, but are cut off when the TARDIS shakes violently and throws us to the ground.

"What the hell was that?" Donna yells over the noise, pulling herself back to her feet.

"It came from outside!" The Doctor rushes to help me up, his arms tight around my waist as he lifts me from the ground. I follow as he runs to the door, shocked by the beauty of space.

"Wow." I whisper, peeking out from behind the Doctor. Looking at him and Donna, I see the shocked expressions on their faces and know I missed something.

"We're in space, how did that happen? What did you do?" Donna yells at the Doctor, looking outside frantically.

The Doctor runs back to the console, looking at a screen. "No, that can't be right!" He hits the screen a few times, his expression becoming increasingly distressed.

"What is it?" I stay fixed by the door, glancing over my shoulder into space once before looking at him.

"We haven't moved." The Doctor looks up at us, shocked. "The TARDIS is in the same place, but the Earth has gone."

"But-" Donna looks horrified. "Are they all dead?"

I think of all the people I know, my family, my dog… I barely hear the Doctor as he frets around the controls, not until I hear my name. I look up from the spot on the floor I'd been staring at, surprised to see the Doctor only inches from me.

"You okay?" He touches my shoulder, looking me in the eye.

"Yeah, of course." Surprisingly it's true, although I am worried about my little Corgi, all alone.

"Good." He kisses my forehead gently before running back to the controls.

"We need to get help." He presses some buttons, I'm guessing he's entering in a destination. "We're going to the Shadow Proclamation." He pulls a lever, and the TARDIS starts shaking violently again.

"What is the Shadow Proclamation?" I ask, holding tightly onto a pillar.

"Space police." He looks over at me and winks. "Here we go!"

We land with a thud, and before I can regain my balance the Doctor and Donna are out the door. I follow, nearly running into the Doctor. "My God."

We're surrounded by these… creatures. They look like rhinos, rhinos holding guns.

"Jodoon." The Doctor whispers to me, and I quickly find his hand and grab hold.

"Sco bo tro no flo ko fo to to!" One of the rhinos- or Jodoon, I guess, shouts at us.

"No bo ho sho ko ro to so." I'm surprised that the words come from the Doctor, and when he's finished speaking the Jodoon lower their weapons. We're lead through the building to meet someone called the 'Shadow Architect'. I stay quiet as the Doctor speaks to her, keeping a tight grip on his hand. I lean my back against his, my head rest on his shoulder. My eyes shut, I think about how lucky it is that I made it to the Doctor in time. I heard the TARDIS, and I ran. One second later and I would've missed him, ended up with the rest of Earth, maybe dead…

"How many?" The Doctor shouts, startling me. "Which ones?" He runs to a computer, dragging me behind him. Donna follows, and I smile at her. She smiles back, sadly. "Callufrax Minorr, Jahoo, Shallacatop, Woman Wept, Clom- Who would want Clom?"

He and Donna go through a list of planets that they've heard had gone missing, and the Doctor makes holograms of them all appear in the room.

"Twenty seven planets in perfect balance." The Doctor mutters, his face illuminated by the light from the planets.

"Oi, Spaceman, what does that mean?" Donna asks impatiently, rolling her eyes at me.

"These planet, they all fit together like an engine." He waves his hands dramatically, his eyes fixed at the wall behind us as he thinks.

"Who would do such a thing?" The Shadow Architect asks.

"Someone tried to move the Earth once before, but it can't be…" He trails off, looking afraid.

"Who?" I ask, twining my fingers with his again.

He looks me dead in the eye. "The Daleks."