[Thor's countenance droops a little at this message. Well, a little more, given by now Tony has filled him in on his side of the details.]

My brother was once a kind person, if a devious and mischievous one. If this is that person... I do not know, either. I have seen him do much that is terrible, and I am not certain how it could be another person, if he is still my brother.

But I am coming home as quickly as I can. I have very little control over the speed of this vessel, I am afraid, and leaving now to fly there is not possible, either.

[Nevermind that he has no idea where he'd be going. He'd try anyway, if he could!]