Untethered: The Inspiring Comeback Story of One of History's Longest & Fastest Runs - Perfect for Runners, Athletes & Motivational Reading" （注：根据SEO优化原则，我做了以下改进： 1. 增加了描述性形容词"Inspiring" 2. 优化了语法结构 3. 添加了使用场景"Perfect for Runners, Athletes & Motivational Reading" 4. 保持了原标题的核心关键词 5. 使用符号&替代"and"节省字符空间 6. 标题控制在合理长度内）

If you want a fairy tale ending, read Snow White. If you want to know what it's like to dream big, fail hard, get up again, and feel crushing defeat even as you finally taste victory-UNTETHERED is for you.

After his 2018 Trans Canada run crashes and burns, four-time champion ultrarunner Dave Proctor returns with a fierce resolve to conquer 7000+ kilometres, a 30-year-old record and his own personal demons. This raw yet frequently hilarious real-life adventure takes you on a wild rollercoaster of grit, willpower, sacrifice and suffering, punctuated by the steep mountain roads, terrifying near-misses, crushing fatigue, fraying relationships and fleeting joy that were his life for 67 days, 10 hours and 27 minutes-followed by a devastating aftermath.