He glances at Luka as he answers the phone, his face brightening a little at the mention of Rory. Another person can't hurt, right?

"Okay. It sounds like your power," he points at Joanna, "will get it off the track at least. Maybe if we pick a good direction to send it, we can kill it with the momentum?" He doesn't know whether to send it into a wall and maybe damage the wall, or into the forest and tear a bunch of trees up though, and honestly he doesn't want to get too far before Rory gets here as well.