A man inherits a vast, rugged tract of land in the Canadian Rockies only to discover it is the center of a high-stakes battle against corporate interests. Bruce Wetheral, suffering from a terminal illness, travels to the remote wilderness to claim his grandfather's legacy, known as Campbell's Kingdom. He faces immediate opposition from a powerful construction company intent on flooding the valley for a hydroelectric project. The narrative unfolds through a tense, first-person perspective that emphasizes the physical isolation of the mountains and the relentless pressure of the encroaching industrial development.

This work is widely regarded as a quintessential example of the mid-century adventure thriller genre. Critics often highlight the author's ability to blend technical detail regarding dam construction with the raw, unforgiving nature of the Canadian Rockies. The narrative is frequently praised for its focus on the moral conflict between progress and heritage, which remains a central theme for readers. It stands as a notable entry in the author's bibliography, reflecting a period when the genre prioritized environmental stakes and human endurance.