The Train to Darjeeling

On September 10, 1946, a thirty-six-year-old Albanian nun boarded a train in Calcutta bound for Darjeeling. Sister Teresa had taught at St. Mary's High School in the Entally district for fifteen years. She was comfortable, respected, settled. But somewhere along those rattling tracks through the Bengali countryside, she heard what she later described as "a call within a call" — a divine summons to leave her convent and serve the poorest of the poor.…