An astonishing 600,000 people go missing in North America each year, most of whom are quickly found, but those who disappear in the wilder parts of the continent are often much harder to find. Journalist John Billman admits to being “obsessed with writing about missing persons in wild places,” and in this book he travels thousands of miles from Hawaii to Washington State to the wilds of northern Ontario pursuing intriguing stories of “cold vanishing.” The “cold” is often of the “cold case” sort and sometimes literally people disappearing into wild, cold places.