The narrative details the life and expeditions of Robert Cavelier de la Salle from his early days at La Chine to his ambitious designs in the North American interior. Driven by an insatiable intellect and an uncompromising will, La Salle sought to establish a route to the Gulf of Mexico and secure the rich valley of the Mississippi for France. Along the way, he contended with immense geographic obstacles, hostile tribes, and bitter rivalries with Canadian merchants and the Jesuit order.
La Salle's early journeys led him to the discovery of the Ohio and probably the Illinois rivers, though his claim to have reached the Mississippi prior to Joliet remains unproven. Despite constant financial ruin, the loss of his primary vessel the Griffin, and repeated betrayals by mutinous followers, he persevered. He built forts at strategic locations along the lakes and rivers, establishing a network of posts designed to check English expansion.
The narrative follows his desperate winter march across the wilderness to retrieve supplies, his confrontations with hostile natives, and his unyielding discipline against treacherous subordinates. La Salle's journey is marked by both the steadfast loyalty of a few men like Henri de Tonty and the persistent betrayal of others who sought to undermine his enterprises.
Throughout these harrowing trials, La Salle's resolve remained unbroken. He dealt with indigenous tribes through a combination of firm resolve and diplomatic grace, while navigating the complex political landscape of New France. His indomitable spirit sustained him through starvation, shipwreck, and desertion, setting the stage for his ultimate descent to the mouth of the Mississippi.