A lost argument

"As a freshman at all-Mormon BYU, Marguerite Farnsworth signs a pledge not to drink, or have sex out of wedlock. Shy and bookish, she's never been tempted to do any of these things until she comes home for the summer and meets John Haberman, an atheist philosophy student who claims he doesn't believe in morals at all. Marguerite and John spend the summer arguing about whether God exists and falling in love. As the summer comes to an end, Marguerite dreads returning to BYU, fearing she'll never see John again and will be left with nothing but a whole new set of doubts about her religion. Unless she can convert John to Mormonism, that is..."--Back cover.