Renowned UFOologist Chris O'Brien blew the lid off the San Luis Valley-now he takes you even deeper into the world's most mysterious locale. The picturesque patch of land that stretches from Southern Colorado into Northern New Mexico, known as the San Luis Valley, has been home to some of the most astounding occurrences in North American history. More strange sightings have been reported within the SLV's radius that in any other part of the country. Shrouded in mystery, a brave few have dared to explore the vast territory-Chris O'Brien is one of those people. He first took us there in his classic work, The Mysterious Valley. Now he returns with even more astonishing stories, fascinating folklore, and probing insight than ever. Enter The Valley and you'll discover: -UFOs-an in-depth investigation of these SLV incidents -Cattle mutilations-numerous examples of this bizarre occurrence, and shocking theories about why it happens -Local folklore-the Colorado Cannibal, a race of "underground dwellers," America's first serial killers, gnomes, Bigfoot, and more -Covert military activity and underground bases-what is the government trying to hide? -And much, much more!