When seventeen-year-old Emma Thomas uploads a new song to Spotify and it explodes into a viral sensation, she becomes an overnight enigma the nation can't stop talking about. But Emma is nowhere to be found-she's thousands of miles from home, hiking the rugged Pacific Crest Trail with family and friends, chasing solitude and inspiration. Unbeknownst to her, a lovesick admirer has followed her across the country, determined to find her on the trail. Unprepared and out of his depth, he disappears into the vast wilderness. As media attention intensifies and Emma fails to check in, rumors begin to spread: the rising star has gone missing in the Cascades. Washington State game warden Luke McCain knows these mountains-and their dangers-better than anyone. With his loyal yellow Lab, Jack, at his side, Luke takes a break from investigating a bighorn sheep poacher and possible murderer to search for Emma before the wilderness claims her music career before it even begins. A gripping tale of fame, obsession, and survival-where the line between rescue and tragedy is razor thin.