As soon as the sirens started, Nolan plugged his ears with some ice. It wasn't much better, as the lack of hearing left him completely exposed to any dangers that might come from outside his line of sight, but at least like this he could manage to think straight. First things first, he had to meet up with Lina. But he couldn't get too close; their powers presented just as much of a danger to each other as they did to any potential enemy.
He looked around and didn't see much worth looking at. Dead tress, sparse grass, and a lazy radioactive river cutting down the middle of it all. He wondered why someone would bother to set up this kind of trap in such a remote area. Maybe it had something to do with this wooden wall. If they'd set up protective measures, whoever they were, they must have something worth protecting.
After he made it over the river, he stopped, and motioned to Lina to come towards him. He started pounding on the wall, trying to break through somehow. This was the edge of the Mind Trap, so if they got through they'd be free, right? It was the only thing he could think of. And even if Lina could come up with a better idea, neither of them would be able to hear it.
He didn't bother with fancy weapons, and just caked ice around his fists as he battered on the wall, trying to break it down.