'Ah.' Charley looks a bit shifty when he recognises the wristband's origins; it's just now occurring to her that she's not exactly sure how much she ought strictly to tell him about what she's done in the years since leaving him. 'Uh, yes, it is.'

She watches with interest as he pulls out what she can only presume is his sonic screwdriver-- significantly altered-- turning it on the PT device. And perhaps she should have, but she isn't really expecting him to try to take off. 'Doctor!' she says a trifle crossly. When he appears again, crumpling to the ground, crossness gives way to worry, and she drops to her own knees to help him, hands fluttering around his shoulders.

'Doctor! Stupid, are you alright? What've you done? And--' she directs a bewildered glance behind him. 'Did you just teleport a couple of cats?'