William Lyon Mackenzie King, Canada’s longest-serving prime minister, led the nation through World War II and toward greater independence, but his legacy is as curious as it is complex. A devoted spiritualist, he believed he could communicate with the spirits of his mother, past politicians, Leonardo da Vinci, and even his late dog. His time in office was also marked by controversy, including the internment of over 22,000 Japanese Canadians and nationals during the World War 2.