What is the author's tone in The Climb: Tragic Ambitions on Everest by Anatoli Boukreev?

"The Climb" is a non-fiction adventure story with an ending that includes both tragedy and heroism. Largely a response to the controversy over the actions of the professional climbing guides Rob Hall, Scott Fischer and Anatoli Boukreev, the book has an overall goal of supporting Boukreev's actions and describing his own acts of heroic rescue. At times, the tone is indignant, as Boukreev takes issue with Jon Krakauer and others who have openly criticized him.