Sebastian Barnack, a handsome English schoolboy, goes to Italy for the summer, and there his real education begins. His teachers are two quite different men: Bruno Rontini, the saintly bookseller, who teaches him about things spiritual; and Uncle Eustace, who introduces him to life's profane pleasures. The novel that Aldous Huxley himself thought was his most successful at "fusing idea with story, " Time Must Have A Stop is part of Huxley's lifelong attempt to explore the dilemmas of twentieth-century man and to create characters who, though ill-equipped to solve the dilemmas, all go stumbling on in their painfully serious comedies (in this novel we have the dead atheist who returns in a seance to reveal what he has learned after death but is stuck with a second-rate medium who garbles his messages).
This starts off in standard Huxley dark comedy, and then turns to an afterlife story. Well worth reading.