I‘ve heard of this book for a long time and finally read it. The tragic story of a trek to the summit of Mt Everest is exciting and very scary. I never thought about how long it takes, how weather conditions are totally unpredictable or how bright the sun can be at such a high altitude. The effect of thin air has on the brain is also unpredictable. To the day people continue to pay large sums of $ to put themselves in danger… I don‘t know why.