Novels about art are often strange, vain affairs. After all, writing about artists, especially fictional ones, can seem like a strained exercise in trying to yoke together two irreconcilable mediums. It is to Anthony Quinn’s credit that his ninth novel, Molly & the Captain, not only succeeds admirably as a centuries-spanning account of the influence and afterlife of the eponymous painting, but manages to say illuminating things about creativity, love and family dynamics in the process.