The story takes place in Texas soon after the War with Mexico. Louise Poindexter, a beautiful newcomer, is courted by two men – the arrogant and vindictive Cassius Calhoun and the dashing but poor mustanger Maurice Gerald. Calhoun plots to eliminate his rival when tragedy strikes: Louise's brother, the young Henry Poindexter, is murdered. All clues point to Maurice Gerald as the assassin. At the same time a headless rider is spotted in the environs of the Poindexter plantation.

Thomas Mayne Reid (1818-1883) was a Scots-Irish American novelist. "Captain" Reid wrote many adventure novels akin to those written by Frederick Marryat and Robert Louis Stevenson. He was a great admirer of Lord Byron. These novels contain action that takes place primarily in places including, but not limited to: the American West, Mexico, South Africa, the Himalayas, and Jamaica.