Near the end of World War II, Lieutenant Peter Roebling of German Military Intelligence offends a fanatical SS Colonel and rubs salt in the wound by defecting to the Allies to become a Nazi hunter. The SS officer takes a terrible revenge. Fast forward 30 years and the two men are locked in mortal combat in South America. There the Colonel lives incognito and Roebling, now working for the CIA, sets out on a mission to thwart a fascist plot in which the Nazi may be a player. Can veteran agent Peter Roebling and an amateur cadre of Christian activists derail the conspiracy? The answer lies at the end of a desperate journey up menacing tropical rivers. Book Review 1: "Dan Liberthson has crafted a tale so gripping you will be looking for the sequel as soon as you finish reading it!" -- Mark Plotkin, Arlington, VA, author of "Tales of a Shaman's Apprentice" Book Review 2: "A great, exciting read. Characters are well delineated and the story is captivating. Once I started it, I could not stay away." -- Dr. Michael Schmerler, Neurologist, Cincinnati, OH

Nature Guiding is the science of inculcating nature enthusiasm, nature principles, and nature facts into the spirit of individuals. "Doing" nature-study means observing, wondering, and solving problems. It could include collecting, building, measuring, painting, planning, writing, touching, experimenting or any of a wide range of other activities. Most importantly, it allows children to be "original investigators." This book is intended as a resource for teachers and students engaged in nature study at summer camps and in schools. William Gould Vinal believed that the teacher of nature study should be "in sympathy with the simple life and the country way," that the nature study should emphasize observation of the interactions of plants and animals in their environment, and not be reduced to matters of taxonomy and anatomy. In Nature Guiding, he offers advice to camp counselors and school teachers on incorporating nature study into everyday activities, as well as suggestions for parents and others about using visits to state and national parks to teach nature lore.