"Uh, yes, thirty seconds.  If they land here, put on your Witness cloak at once and get your thumb back on the button.  Then wait - and if I call you over to me, let the balloon go up.  But I don't dare shout 'Wolf!' on this unless-" He shielded his eyes. "One of them is certainly going to land and it's got that Paddy-wagon look to it, all right.  Oh, damn, I had thought they would parley first."