Anna did as she was told. She didn't want to be left behind after all. A foreign planet that was possibly even hostile. It was bound to be dangerous if the Doctor had been drawn there. Whether consciously or not, he had a knack for attacking danger. It was only confirmed by the conversation they overheard. Her lips pulled back in a snarl, revealing long canine teeth. These beings had done something to attract the Doctor and it had worked. Luckily, the Time Lord himself hadn't been spotted yet. "Doctor?" She whispered, looking up at the taller man. "What are they? And why do they want to kill you?" She asked, expecting an answer. He always had an answer for her questions in that clever head of his. The voices faded with the sound of footsteps and Anna relaxed a little. She took a deep breath, looking around to check that they hadn't been spotted.