Swamped

"I think our best bet is to check out that storage room. See what else is in there. After we get those weapons back, that is."

"And how are we going to get there?" Ash asks. "That corridor is going to make us sick, and the other way involves going past whatever's beyond that hole."

"Yeah, well, whatever it is hasn't come this way. If it's not actively coming after us, we can probably slip past it."

"Fine, but you're taking point," Ash says. You're not inclined to argue right now. You can settle things with him later.

You start walking back, and soon come to the hole. Just as you approach, the ship starts shaking again. You grab hold of the nearest wall as best as you can and wait for it to stop, but it doesn't.

"What are you doing?" Ash asks. You turn back to look - he and the kid are just standing there. The entire world seems to be shaking around them, but they're standing still, unsupported.

On a hunch, you carefully edge your way back, and the shaking suddenly stops.

"I don't know what it is, but when I got over there, it felt like the ship was shaking. Worse than before, even. And when I looked back, it was just as bad, even though it didn't seem to be affecting you."

"Some kind of illusion, then," Ash muses. "Since you felt it and we didn't."

"Must be one hell of an illusion to shake that much."

"I had to close my eyes to walk through a door earlier, and I still had to fight against everything my senses were telling me. I wouldn't bet against it here."

You look Ash right in the eyes.

"Well, then. Since you're apparently the expert on illusions here, how do you recommend we get past this one? Just close our eyes?"

"If this is anything like the door, that will help, but it won't be enough on its own." Ash looks thoughtful. "I think it might have to do with what you believe you're doing. When I tried to push my way through the door, I was reminded of swamp muck, so while it was hard to go through, it wasn't impossible."

"You have any recommendation for what might work here, then?" you ask.