"The Apache Devil" is a novel written by the American author Edgar Rice Burroughs. This adventure novel was first published in 1933. The story is set in the American Southwest during the late 19th century and revolves around the character of Nick Gregory, a cowboy who gets caught up in a conflict between the U.S. Army, Apaches, and Mexican bandits. The plot includes elements of action, adventure, and conflict in the Wild West, and it explores themes of heroism and the challenges of frontier life. Edgar Rice Burroughs is best known for creating iconic characters like Tarzan and John Carter, and "The Apache Devil" is an example of his adventure fiction set in the American West. While not as well-known as some of his other works, it reflects his storytelling abilities and his knack for creating engaging narratives in various settings.