Startled, the Doctor spun toward the voice cutting through the darkness. It was good at spinning, this body. Spinning and being cross, both of which were being put to use. "Shh." He hastily strode toward the faintly glowing rectangle. Someone curious about the ghost, he didn't doubt. Well, she was in for a rude shock. "There'll be no ghost bothering tonight. This theatre has its quota of trespassers, I trust you can see yourself out." More details resolved themselves as he drew closer. Clothing, a suggestion of a shape. Definitely human, and very likely unaware of how much danger she could be in, if his hunch was correct.

There was something niggling at the back of his mind, an observation that was familiar and dreadful. He couldn't quite put his finger on it, and his frown deepened. If only she'd turn the screen toward her face. Announcing his presence to whatever was here by making a beacon of himself hadn't been his intention, but it seemed he didn't have much choice, if he wanted to find out why her voice filled him with so much guilt. It was better to sacrifice a slight tactical advantage than be distracted when he needed a clear mind. He adjusted the sonic's settings.

It erupted into bright blue light, or so it seemed after the darkness. The Doctor squinted, shielding the sonic with his hand. So much for night vision. He would have to remember to adjust the torch function. Maybe give it more than one setting--

"I know you." Nascent sonic improvements forgotten, he waved his pointing finger at her. The name escaped him. Big name, full of heart, and loud. "You're the mouthy one. Oh, you really shouldn't be here."