An eye-brow raised, as he looked at her. "Okay, so...they feed off energy?"

A pause, head tilting slightly. "First of all, I'm a time traveler too. Secondly, I can guarantee you I can put off enough energy that in addition to that, I'd be a very tasty snack. Thirdly, YOU know how to deal with these weeping angel things. Which means, if we confirm these statues are them, then YOU need to be here to warn everyone else."