The theory of (not quite) everything : a novel

Mimi Brotherton, younger sister of Art, believes in truth. And most of the time, she believes in telling it. Art, a mathematical genius, believes in facts. Bound together by their parents' tragic deaths, the siblings share their family home and have a strong, if unequal, relationship. Art has everything he needs (math and a devoted sister). Now, Mimi is ready for a life of her own. This might include love. At first, Art is cautiously enthusiastic...