A late-afternoon train rolls into Köping and the world narrows to a handful of strangers, backpacks, and a guide checking compasses. By the time the van slips off the tarmac and onto forest tracks, birch and pine close in, and the scent of moss and peat replaces the city air. Participants hike until they find a sheltered hollow; hammocks are strung between trees and a small, communal fire is coaxed to life. As dusk folds into night, guests sit in low light listening for the long, rolling notes that wolves use to stitch territory together.