The 1990 US/Australian expedition to the North Ridge of K2 placed American Steve Swenson and Australians Greg Mortimer and Greg Child on the summit without the support of supplemental oxygen. This book by support climber Lyle Closs gives a very human and individual account of a small expedition - the personal challenges and achievements of the people involved, as well as the wonderful countryside and mountain scenery and environments experienced over three months in the Karakorum summer of 1990.