Mikkel arranges their passage because he speaks Icelandic, unlike everyone else but Reynir, and he has money from the expedition, unlike Reynir.
Once they get to Finland, Sigrun overrules Mikkel when he wants to stay in the port and leave in the morning.
Sigrun and Mikkel both talk to the Gull-mage; he talks to Mikkel about Surma, but not Sigrun, which appears logical since Mikkel has a shotgun and Sigrun doesn't.
Sigrun decides where they'll camp the first night.
Sigrun has the plan for the cartroll and orders Mikkel to assist.
Sigrun shoots at the tanktroll without waiting for Mikkel's input.
Although Emil has the plan for defeating the tanktroll, Sigrun takes charge of distracting it while Mikkel hangs back with Reynir.
Mikkel does assert himself when Sigrun wants to go back for gear, and she agrees not to; we learn later that she just doesn't believe in Surma even if Mikkel does.
Sigrun decides that they will raid the warehouse with the acid trolls, and tells Mikkel to get what they need, which is logical because he's the strongest and most practical.
Mikkel does resolve the impasse between Emil and Sigrun as to who stays with Reynir.
Sigrun is standing guard alone when the lake cows pass the camp.
Sigrun takes the lead in dealing with the poodle-beast, telling Mikkel to be her backup.
After Mikkel shoots the poodle-beast, he insists that they run and she agrees.
Sigrun issues orders when they encounter the wolf-beasts; her plan would have worked but for a falling pebble.
After Lalli gets the team into a tree, Sigrun orders the attack so they can escape.
When the lake cows start eating the wolf-beasts, Sigrun orders retreat.
Sigrun decides they'll go into the Joensuu city center.
Sigrun naturally wants to tie up Onni and take him home; Mikkel counsels talking first.
Mikkel does all the talking with Onni, because Mikkel speaks Icelandic and Sigrun doesn't.
Sigrun plans Operation Bear Hole. It doesn't work, but then neither does anything else.
When Sigrun and Mikkel are redirecting the naked mole rat, Sigrun is in command. It's a small thing, but notice that when they hide from the bears, Sigrun places herself in the more dangerous position.
Sigrun proposes luring the bears over a cliff and Mikkel calls that Plan B.
Onni proposes tying up the naked mole rat; Mikkel assigns everyone their positions, then assists Onni.
When they have to run from the Mother of Bears and Surma, Sigrun leads the way and finds (what appears to be) shelter.
Sigrun has a plan to fight from the roof.
Sigrun tries to keep the team together, calling for the mages to follow, then ordering the others to chase the mages, before the Mother of Bears gets between them.
Mikkel yanks the door open so they can dodge the blob-blob troll, and orders everyone to take cover.
After the floor collapses and Surma arrives, no one can do anything until the second collapse, when Sigrun non-verbally orders retreat.
And finally, the last we see of them until next chapter, Sigrun says, "this is our chance to find the others and get out of here!"