Emma Donoghue’s new novel has been decades in the making. “Learned by Heart” tells the story of two young teenagers, Anne Lister and Eliza Raine, who fall in love at their boarding school in England in 1805. Except these characters aren’t that of fiction — they actually existed. Emma tells Tom about when she first discovered the story, how Anne Lister changed her life, and how it feels to finally finish this novel.