 He returned weeks later and successfully summited the mountain via the easier Abruzzi ridge with Veikka Gustafsson.In 1987 Groom summited Kanchenjunga (the world's third-highest mountain at 8598m) but on descending developed frostbite in the toes of both feet, later resulting in partial amputation of both feet.In 1999 he climbed Makalu (), the world's fifth-highest mountain.