My love for this knows no bounds. I was moved to tears on several occasions as George described the stages of the journey and the team effort that lead to two men finally reaching the top of Everest. His precise, detailed and personal letters give such an insight into the climb it feels like he is taking you up with him as he goes. His feelings about his team members, about the political decisions and implications of who should reach the top, of the journalist's war for a scoop on the ascent... everything was fascinating.

Besides which the audioversion is read by Dan Stevens who has the most gorgeously, resonant voice and lends such character to the letters, I could have listened forever.