The Mystery of Chaco Canyon is an historical fiction, a mystery and a love story set against the background of the American Civil War in the Southwest. Ten years after the events described in Massacre at Point of Rocks, Dan and Roque joined by Dona Loca and Jicarilla Apache, Peregrino Rojo, are set on a quest by a dying Masonic brother. Along the way they must solve the real mysteries of the Los Lunas Decalogue Stone, Chaco Canyon, Chimney Rocks, Rough Hurech's Grave and the Silverbell Artifacts. The mysteries are real, the solutions novel. The enemies who pursue them are real, the battles are real. The DaVinci Code meets the Wild West."