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One spring day, Mike Horn left his beloved wife and two daughters on a shore to circumnavigate the globe alone, following the equator. On foot, by dugout canoe, by sailboat, or by bicycle, across three oceans and two continents, Mike Horn journeyed along this invisible thread, never straying more than forty kilometers from it. Here, he recounts how a solitary man manages to blend into nature, choosing whether or not it will let him pass. In the Brazilian rainforest, bitten by a snake, he remained blind for four days, semi-conscious. But the greatest danger is humanity and its wars. In Africa, rebels arrested Mike Horn and sentenced him to death. He escaped by the skin of his teeth. Why all this? Because he wanted to fulfill his dream, to delve deeper into the encounter between nature and humanity. In this extraordinary story, we discover a man who is afraid, who marvels, who is in pain, but who moves forward, always.