[for a moment, Douglas can't quite grasp the fact that it's genuinely Heather looking at him through that screen. His brain stops working momentarily, and then when it starts back up again an almost disbelieving smile forms on his face, because what are the odds that it'd be her who picked up on his transmission]

Heather?

[for a moment there aren't words to say what he's feeling, which is a mixture of joy, relief, and utter confusion, and so a rather massive smile is going to have to do until he sorts things out]

What are you doin' here, kiddo?