I did. If you don't, you'll begin to... dissolve.

[ a beat. with their background, that sounds much more graphic than he means it. ]

That is, you'll... fade away. I'm not sure what will happen then— if it would take us back to where we were. But, ah... I doubt it.

[ So. He took the risk. There's so much to figure out about this place, anyway— surely there will be some way out. Jon has, at this point, escaped from worse. ]