 At around 8,460 m (27,920 ft), he discovered an ice axe, which was almost certainly a remnant of Mallory and Irvine's ill-fated attempt at the first ascent in 1924.Wyn-Harris returned to Everest in 1936, in an expedition again led by Hugh Ruttledge.Wyn-Harris joined the Colonial Service in Kenya in 1926.