In 1999, Michael Matthews became the youngest Briton to summit Mount Everest. But three hours after he reached the top of the world, aged just 22, he disappeared into blinding snow and his body has never been found.
Description：In 1999, Michael Matthews became the youngest Briton to summit Mount Everest. But three hours after he reached the top of the world, aged just 22, he disappeared into blinding snow and his body has never been found.
