John Buchan 
Sick Heart River (Mountain Meadow) 

Sick Heart River (1941) is a novel by Scottish author John Buchan set in Canada. It was published posthumously. The book was published in the United States under the title Mountain Meadow. Sir Edward Leithen is diagnosed with advanced tuberculosis and given a year to live. While deciding how to spend his remaining days, an American associate, John S. Blenkiron, requests help to find his niece’s husband, Francis Galliard, who has disappeared from his very successful financial career in New York and fled to Canada. Leithen follows Galliard to the Quebec. During this he finds a mountain meadow he had seen on a trip thirty years earlier and which has stayed in his memory since.