There is surprisingly little known about this fish; a 20-year study to pinpoint their origin was interrupted by World War I. Scientific discoveries are few and far between, but the well-paced writing here motivates readers to learn more about these secretive animals that are in danger of becoming extinct. While exploring this historical path, Svensson quietly weaves in his own experience with eels, focusing on his father and how we interpret our own histories as humans, collectively and individually. The work poses questions about philosophy, the metaphysical, and the spiritual, as well as scientific issues, in a way that will stir readers.