Her brows knit in confusion. "Do you not have your TARDIS?" she questioned. Maybe he was displaced here as well. She watched him carefully. He wasn't playing around or even searching for an answer. "Doctor..." she said pausing to choose her words with care. "Why can't we go back?"
She looked to his eyes and then away again. It was scary what she might see there. So much of him she knew would be familiar but something had obviously changed more than his physical form. "Please, tell me." She attempted to hold his gaze no matter what she might see or sense from him.