"Oswin?" The Doctor gaped first at Clara, then back to her. "What-?"
Both Clara and Oswin were astonished to discover someone who looked exactly like themselves.
"Doctor," said Clara, breathing heavily. "Who's that?" She took a step backwards and clutched his arm.
"Doctor, why are you here? And how am I here? I'm...really confused." Oswin stepped closer, and they both stepped back.
"Yeah, Doctor. I'm confused too. Is that me? Or am I her?" Before The doctor could do anything, both Oswin and Clara were circling around each other, inspecting their double. They touched each other's hands, then both grinned.
"Wow. This is actually pretty cool. There are two of us!" Exclaimed Oswin."
"But- you're supposed to be a Dalek! You shouldn't exist anymore! And neither should this place! Something is very wrong here. Both of you come with me, we're going to visit Victorian England."
The three of them hurried back to the TARDIS, who made an alarmed whirring noise at the prospect of two Claras.
"It's all right, se..." he cleared his throat uncomfortably, and Clara smirked. "We'll sort this all out." While the Doctor flipped a bunch of levers and pushed buttons left and right, the two duplicates sat down to talk.
"So...what do you think about this? I mean, how weird is it that there's two of us?"
"It's kind of odd and amusing at the same time. Especially for me, since I'm not supposed to be alive. I was a Dalek, and all of a sudden I was here."
"Hmm. Traveled with the Doctor before, yeah?"
"No, he came to rescue me once. But in the end, I was the one who saved him. It was pretty fun flirting with him, though. Even after he went, I still dreamed of him coming back to save me. Even though I knew, well, I thought I knew, that he wouldn't. But here you both are, and I'm really befuddled."
They sat in silence for a minute until it was abruptly broken by a holler from the Doctor. "Oi! You two, get over here, We've arrived, and you should get dressed. The TARDIS made another set of clothes for you."
Oswin ran up, grabbed the dresses, and tossed one to Clara. "Look! They're the same!"
Both of them ran to the changing room, and the Doctor sighed. He hadn't wanted her to find out like this, much less have them all find out about each other. But it had to be done. His pondering ended when his companion and her look-alike bounded down the stairs. Both were clad in Victorian dresses, with the same hairstyle and the same parasol.
"Wow. You two look..." for lack of a better word, he added, " great." Clara grinned, and Oswin rolled her eyes.
"Can't you do better than that, chin?"
"Hey! It's bad enough when it's only Clara saying it."
The trio strolled up the empty street, Clara holding one of the Doctor's arms and Oswin holding the other. For him, it was one of the strangest sensations in his life, which was saying something. They turned the corner and ran into a tall, veiled woman.
"Sorry about that, Ma'am. Hold on! Vastra, is that you?"
"Doctor? What on Earth is going on here?"
"Well...it's hard to explain."
"Good enough for now, I suppose. I was just coming to find you. There's been, well, I found," She trailed off as a woman stepped out from behind her.
The Doctor, Clara, and Oswin gasped. "Oh my stars," Clara muttered. "The plot thickens," stated Oswin after several seconds. For beside Madame Vastra stood yet another Clara.