If, Then, Kate Hope DayA must reada gorgeous literary novel that asks us to imagine all the possible versions of ourselves that might exist. J. Courtney Sullivan, New York Times bestselling author of Saints for All Occasions The residents of a sleepy mountain town are rocked by troubling visions of an alternate reality in this dazzling debut that combines the family driven suspense of Celeste Ngs Little Fires Everywhere with the inventive storytelling of The Immortalists .