"Plunged into a strange land at twenty-five, Benjamin Moser began an obsessive, decades-long study of the Dutch Masters to set his world right again. Beyond the sainted Rembrandt—who harbored a startling darkness—and the mysterious Vermeer, whose true subject, it turned out, was lurking in plain sight, Moser got to know a whole galaxy of geniuses: the doomed virtuoso Carel Fabritius, the anguished wunderkind Jan Lievens, the deaf prodigy...