What followed her rescue is one of the most extraordinary medical cases in American history.

What preceded it is a story that begins with a Saturday night out, a patch of ice, and a miscalculation about distance that almost cost Jean Hilliard her life in the frozen dark of a Minnesota December.

Lengby, Minnesota

To understand what happened to Jean Hilliard, you need to understand the place where it happened.

Lengby, Minnesota is not a place most maps include.

Tucked into the north-central part of the state, it sits in a region of forests, lakes, and farmland that is rural in the most comprehensive sense of the word.