Still room for Lalli, however undeservedly, to blain himself. I see it like this: in Copenhagen, Lalli didn't foresee the heavy snowfall, hence the flashback and the "I don't make mistakes" thing. So he finds a new way to the "safe" spot, a path where he exhausts his luonto self by almost killing all the trolls in the way, but not quite- leaftroll survives. But the process leaves him unconcious so he can't warn the team of the approaching danger. And so Sigruns arm get hurt. An injury that makes her miss creepy crawly troll in the big attack, so that it enters the cattank and bites Tuuri. I wonder if this chain of events will be brought up in the story?