Enjoy!

Abby was shocked. “W-w-what?”
“My sonic, stupid. wewe stepped on it!” He picked it up. “Big bumbling buffoon.”
She gave him a cuff round the ears. Though her hand passed right through his head, Christian rubbed his ear. “Abby! What'd wewe do that for?”
“I didn't hit you!”
“Yes wewe did, look!” Christian's ear was turning a bright red.
“But that's not possible. My hand passed through you.”
“Not it didn't. If it had, I would have known.”
“CHRISTIAN! Bloody hell, Christian, we are hurtling towards a neutron star!”
Christian cursed quite loudly in French. “Why didn't wewe stop it?”
“I couldn't! My hand goes right through the console!”
“So, you're trapped in an alternate dimension. So what? What about Dad? au Amy? au Charlie?”
“They're asleep, Chris, and they won't wake up.
Christian jumped up. “That's a problem.”
“I KNOW!!!”
“WELL, COME ON THEN, THE TARDIS WON'T STEER ITSELF!!”
Oh, really, young Time Lord?
“Please be quiet, dear."
“Dear?!”
“You too!”

Christian took the stairs three at a time. Abby found it harder, mostly because she kept sinking through the stairs.
“CHRIS!” Abby screamed, realising that her leg had gone through the last stair up to her shin.
Christian whipped around, black hair sticking straight up. “Abbs, what's happening?”
“I don't know! Just, help me!”
Christian njiwa for Abby's hand. Already she was up to her knees in the stair case. “What's right below me?”
“The moyo of the TARDIS.” Christian's eyes grew wide. “NO!!” He pulled harder.
“I'm still sinking!” Abby cried.

CLIFFHANGER!!!