You were in a life-death situation. Well, at least, not anymore, since Nikolai saved you with his portal. You stay in the room he teleported you in and later he teleports there too.

"Ah, Fyodor.."

"Hey.."

Though he seemed much more gloomy than usual, you just spoke to him normally, but he responds so dryly.. was it because of what almost happened? When you almost died?