"Clara," she turned around. It was Sherlock. He gave her one curt nod—pretty good coming from him, encouragement-wise—and Clara stepped through the door. She checked her earpiece to make sure it was still transmitting, and—there it was.

The TARDIS. The sight of the familiar blue box filled Clara with so many mixed emotions that she felt equally ready to sob or laugh out loud. But something wasn't quite right. The paint was peeling in places, and the windows were dusty. No light shone from the little lamp at the top of the box. And—Clara realized this as she stepped towards it in one heart-stopping, breath-catching instant—it was bigger. An image sunk into her thoughts like a death toll. The TARDIS, huge and ominous on the horizon. The Doctor's words. "When a TARDIS is dying, sometimes the dimension dams start breaking down. They used to call it a size leak. All the bigger-on-the-inside starts leaking to the outside. It grows."

"Clara, please keep moving. We want to get you in and out as fast as possible," Kate's voice cut in and Clara shook her head.

"Right. Sorry." She walked right up to the blue box, and, a prayer in her mind, yanked on the doors. After only a moment, they swung open. "Thank God," she whispered, and stepped inside.

It was like walking into Danny's apartment, the day after his death. The box felt empty, dead. The only illumination came from a faintly blinking blue light on the console. Clara realized she was holding her breath and let it out, slowly, shakily, as she walked towards the opposite door. She stepped forward, but was stopped—an invisible wall, a force field separated the console room from the rest of the TARDIS. Clara gently pressed a finger to it and watched the tiny vibration blip in a wide circle around the room, like a pebble skimmed over water.

"Clara."

She jumped, but didn't turn around, because that was the Doctor's voice—rough and violent and him—only something was wrong.

"You can turn around Clara. But then I'm going to have to ask you to leave."

"Doctor," she whispered, trying to catch her breath and utterly failing. There was a pause. Then the Doctor- person—thing- whatever- chuckled.

"No. Not the Doctor. I think you know that, Clara. Now out you go."

"Why?" she whimpered, still refusing to turn around. A chill crept up her spine.

"Because I'm going to initiate the TARDIS self-destruct system. You have two minutes to leave."

"No," Clara hissed.

"Will you listen to me better with this form?"

Her knees almost gave out. It was still not-quite-the-Doctor's voice, but this time it was not-quite-her-Doctor's voice. Her Doctor, younger, with an eager boyishness and bowtie almost audible in his words. "Stop it."

"A minute thirty, Impossible Girl. Won't you listen to your boyfriend?"

"Stop it," she repeated, stronger, but still so weak.

"But he's not your boyfriend anymore, is he, Miss Oswald?" It was Sherlock now, with the rich, wry half-sarcasm he always used. "New boyfriend. But what about the old one? What happened to Danny?"

His voice echoed from all sides of the TARDIS. Clara covered her ears and stifled a ragged scream. She couldn't help it. She turned around. There stood Sherlock, but when he spoke, it was with Danny's voice, and there was an unnatural green cast to his skin. The figure blurred in front of Clara's eyes and she stumble towards the doors. Everything was going wrong and she could barely hold herself up and the door was caught and "Thirty seconds, Clara," said Danny's voice as she fell backwards out of the TARDIS and into the cold white light.