Kami Rita Sherpa had stood at the top of world just days earlier, exultant at having summited Mount Everest for a record 28th time.
The Nepali climber was given a hero's welcome on his return to Kathmandu, but all that joy appeared to have deserted him as he surveyed life's highs and lows from an armchair in the small, neat living room of his rented apartment, while his wife poured tea.
