In which the Astorians, upon hearing troubling reports of rival traders venturing within their domain, dispatch a party upriver to explore and establish a counterpost, encountering both the majestic natural scenery and solemn indigenous customs along the Columbia. Amidst these earnest preparations and cautious diplomacy, the narrative unfolds with vivid descriptions of the river’s formidable rapids, a bustling native fishing mart, and the interwoven complexities of trade and native character.