London, ENGLAND: A young British woman has become mum to a staggering 14 Tanzanian children she met after volunteering in an orphanage on her gap year. Letty McMaster, 26, was just 18 years old when a month-long trip volunteering at an orphanage in Africa changed her life forever. She ended up staying for three years to support the children she had met, and when the orphanage shut down, Letty took in nine youngsters who would have been left homeless. Seven years on, she lives with the children after becoming legal guardian to them ALL - as well as five more kids she met on the streets or at a safe house she runs. Letty McMaster. Letty, from Tunbridge Wells, Kent, said: "These children are my whole life, I raise them all on my own and they keep me going through the long hours of juggling everything. "I'd always had in mind that I wanted to help street children so my family and friends weren't surprised but I never expected to end up doing all this. " I am the pa