Bugles in the Afternoon (en Inglés) - Ernest Haycox

Summer 1875. Smoke columns and war drums tell the high plains a reckoning is near-the Sioux are gathering, and the Seventh Cavalry rides to meet them under a vain, glory-hungry commander whose name will soon be carved into legend.

A disgraced trooper, hunted by his past, slips back into the ranks of Custer's regiment, where every saddle creaks with rumor and every campfire breeds suspicion. He has come for two reasons: a woman whose loyalty he cannot trust, and an enemy in blue he has sworn to kill. Around them, scouts ride hard, officers drink hard, and the prairie shimmers with the heat of a country tipping into war.

From plains forts to the Yellowstone breaks, this is the storied West rendered with the spare elegance of a master-a tale of love, betrayal, and the terrible morning that broke the Seventh on the Little Bighorn.