It’s a long way down…Judge Quinn and his lovely young wife have disappeared without a trace. The couple was last seen taking a boat ride on the Colorado River—and now three river guides have been found with their throats slit. To get to the bottom of the mystery, Longarm needs to get to the bottom of the Grand Canyon. With a Dutch beauty named Heidi at his side, U.S. Deputy Marshal Custis Long fights off back-shooting bushwhackers just to reach the rim of the Canyon. Once he’s down on the river, he discovers even worse trouble around the bend. Longarm will need to keep his head above water as he battles ruthless river rats—or he may find himself up the creek without a paddle…