"We can hope so," Susannah says. "It's odd," she says suddenly, trying to switch the subject to one that's less fraught, "but humans also have a concept called 'Shangri-la.' There's a book about a hidden city in the Himalayan mountains called that and it just about means any sort of earthly paradise. But the way you talk about it, it sounds like troll Shangri-la is more like a kind of Heaven, the place where the good and pious go when they die."