**A USA TODAY bestseller**A riveting narrative of love and loss, grief and joy, as one woman embarks on a quest for a record on the Pacific Crest Trail.When Emily Halnon lost her beloved mother to a rare uterine cancer at just sixty-six years old, she wanted to do something monumental to honor the person her mother had been: adventurous, courageous, inspiring. Emily’s mom had taken up running in her late forties; she ran her first ...

When Emily Halnon lost her beloved mother to a rare uterine cancer at just sixty-six years old, she wanted to do something monumental to honor the person her mother had been. Emily's mom had taken up running in her late forties; she ran her first marathon at fifty. She even went skydiving to celebrate her sixtieth birthday.Emily, already an accomplished ultrarunner, decided to try to break the record for the Fastest Known Time by a woman on the Pacific Crest Trail's 460 miles acros...