Margaret and Patrick, Married Just a Few Months, Set Off on a Great Adventure ? a Year Living in Kenya. While Patrick Practices Medicine, Margaret Works As a Photojournalist, Capturing a Dizzying and Sometimes Dangerous City on Film. When a British Couple Invites the Newlyweds on a Climbing Expedition to the Summit of Mount Kenya, They Eagerly Agree. but During Their Arduous Ascent a Horrific Accident Occurs. in Its Aftermath, Margaret Struggles to Understand What Happened on the Mountain and How It Has Transformed Her and Her Marriage, Perhaps for Ever. With Stunning Language and Striking Emotional Intensity, a Change in Altitude Illuminates the Irrevocable Impact of Tragedy and the Elusive Nature of Forgiveness.