"Passenger" is a wonderfully poised novel. It rattles along at great speed without ever missing out on the telling, piquantly humorous detail. Mr. Keneally has taken on a bold range of subjects—parenthood, sexuality, psychiatry—and serves them up with a rare, Nabokovian verve that yet manages to sound the depths. His novel should be read for the sheer jeu d'esprit of it, although "Passenger" is more than fun.