The Crystal Tower — John Northern

It's 1884 in Northern Arizona when Billy McGraw is led into a mine, which in reality turns out to be an underground building where magic and science technology are at their ultimate. Billy obtains both and uses them as he sets out to recover a treasure stolen from him by the Apaches. In this tale, John Northern describes Billy and Annie's adventures as they encounter outlaws and Indians, who become their enemies in all-out battles. When they finally catch up with the Apaches, who took his treasure, Billy finds much more than he had planned for.