Will Hobbs's classic tale of whitewater adventure is back in print with an exciting new look.No adults, no permit, no river map. After fifteen-year-old Jessie gets sent to Discovery Unlimited, an outdoor education program, she and six companions "borrow" the company's rafting gear and take off down the Colorado River through the Grand Canyon on their own. Floating beneath sheer red walls, camping on white sand beaches, and exploring caves and waterfalls,...