Marcus and Coyote have been on a long Journey across the wilderness of North America. They have encountered many of Nature's wild creatures. The Gila Monster and Side Winder who helped them to cross the desert. Seal and Geo who further their knowledge about life and the many wonders of Nature. They have just entered the Cascade Mountains. They are on a search for the fire-mountains that Geo, the owl, promised was only a few hundred miles to the north. These are the mountains that burn from within revealing one of Nature's great forces shaping our planet and home; the Earth. They are in a rain forest that does not belong to them. They are uninvited guest. Will they show this great forest the respect it deserves or are they like the humans who are coming to bring about its ruin? There is an invisible force in the forest that will hold them accountable. They are the Spirit Walkers the keepers of the forest who protect the forest and all the wild things. These are the wild ones who the humans claim steal the babies and eat their victims alive. They stand twelve feet tall, breath fire and devour the bones of their prey. if not careful Marcus and Coyote will answer for their misdeeds. Are the Yeti real? Is this really happening, or is it all (life) just a bad dream? This is just one of the many adventures Marcus faces as he journeys into the wilderness to explore the unknown and discover the meaning of life.