The narrator recounts an expedition through icy coastal channels and mountain glaciers accompanied by a small, enigmatic dog whose contradictory traits—stoic endurance, cunning, and occasional warmth—shape the account. Short episodic scenes of canoeing, shore landings, hunting forays, and mountain rambles showcase the animal's surprising abilities and the narrator's increasing attachment. Lyrical natural description alternates with close behavioral observation, leading to a tense glacial ordeal that tests courage, trust, and resourcefulness. Central concerns are the harsh beauty of wild landscapes, the intelligence and temperament of a companion animal, and the personal transformation prompted by shared danger.