'Keep your watch pointed at the stage,' directed Artemis, interrupting Butler's thoughts. 'The chances are miniscule that a demon will be caught without silver, even away from the crater, but if one does show up, I want it on film to prove to Foaly that my theory is correct. If we don't have incontrovertible proof, the fairy Council will never take action.'
Butler checked that his watch crystal that doubled as a camera lens was angled towards the stage. 'The camera is fine, but if you don't mind I won't be letting the sublime music flow over me, I have enough to do keeping you safe.'

The Lost Colony, Chapter 4