No, I d-d-don't...

...A s-swamp?

[It was too much of a radical change in an environment to be feasible, so he accepted Badou's hypothesis of multiple islands immediately.]

An i-island would make sense... B-but how did they appear s-so suddenly?! What is the p-purpose of this?!

[It was a reason to stop. Don't continue further looking for him. He's probably not even here.]

I-I've been in snow before, but... but this i-is nothing like a-anywhere in J-Japan, even in Hokkaido! T-This must be the arctic!