Korpan bites his lip a moment, his eyes sliding to Tyler and then back to the young woman. "Your snowmobile will have twice as much fuel as it needs to make the trip to the helicopter area and back," he says. "If it breaks down in a purely mundane way, signal for everything you're worth and get him on it. Tyler, you'll have to learn to drive in a hurry if that happens."

"And if it breaks down the other way, signal for reinforcements. There'll be Finns on alert for that." He nods to two of the shortest people in red and blue.