The Great Rift

It was believed that the richest archeological find in history had brought closure to the two hundred year old mystery concerning Bryan's great great grandfather. But that was not the case. An even greater mystery now unfolded in the remotest part of the Mojave desert. Clues led to the discovery of an immense treasure and an even greater potential for disaster. What was it that was hidden beneath "the great black bird"? Was Bryan's and Tammy's relationship on the rocks and their marriage in jeopardy? Entering the mix was a girl named Jo, whose abilities and interests closely matched those of Bryan. How would it end? What would prove to be "the great rift"?