I will comment on each page, and then maybe add some generalities.
142: I kind of skipped past this image on my first reading, but even if I hadn't, I wouldn't have been as shocked as most new readers, as I had been (somewhat) spoilered by TV Tropes, and was expecting giant monsters of some kind. I still like the comment (by Zadown): Whenever you are having RL problems, just think of that train running over them, chainsaws chewing air and aforementioned problems at full speed.
143: We find out why Our Heroes are taking the train and not a boat: the train is free! Also, the Swedes at least seem a bit optimistic. I suppose they haven't taken it before. (I can't remember -- does the Committee take the train back?)
144: OMG, Emil trying to impress Lalli by showing him the train (as started in 143) and then Lalli taking too-good a look... And Emil somehow completely failing to understand the meaning of the scratches, even though he goes back to look at them. Emil. Do you think they're a manufacturing defect? (At least Tuuri knows, because of the anti-Swedish gossip shared by Taru.)
145: So, it could be a vision. Minna says so, in spite of Jitter's earlier comments! I guess it doesn't have to be tied to those specific scratches? Except we don't really see Lalli get these sorts of visions otherwise? (I mean, we don't get to see much of what he sees, except through his actions and briefly through Emil's eyes, but doesn't this seem like a pretty useful power that would have come in handy in some more obvious way?)
146: I don't see anything weird about the look Emil gives--I think he's trying to match his photo, as people say--but I suspect that the look he gets back is due to some not on his ticket mentioning the stolen Cleanser supplies. Or some other shenanigans. This is a military train, there's probably a rundown of his military record on there.
And hmm, so, people have fallen off the ramp before? Sigh.
Regarding the comments, I am shocked that Noah O says it's impossible to understand Lalli. To me it's pretty clear that he's been reacting with alarm and confusion to seeing many things for the first time, and is now reacting with alarm and... lack of confusion... to seeing something he is familiar with.
147: Oh Tuuri! I get where you're coming from--you're stressed out from the story, Lalli's issue seems random to you, and it's not like he's going to tell you it is not--but maybe you could try? Your threats are awful. And this 'just carry him around' thing is, as noted, a bit creepy. (Part of the blame goes to Lalli, too. I know he has his unique issues, but surely describing *danger* to people is one thing he has been taught to do? Repeatedly?)
148: Love how the guard doesn't even notice the beautiful performance going on before him. I guess it's all Finnish to him. And I am definitely in agreement with whoever said that Lalli is likely concerned with whether the gods CAN hear him, so far away: he puts in verses about the distance, and I think his uncertain, single-eye-opening face is not something he does after every spell. So his little hop onto the train is not just 'Yay! Moon!' but also 'Yay! Kuutar hears me still!'
...more some other time...