It's only once every 157 years that the Artemisian Star, a wondrous comet said to bring good luck, passes over the small town of White Oaks.
Louis Wickham, a troubled teen traumatized by the untimely death of his parents and younger sister, has lived in nigh-isolation, keeping mostly to himself, his uncle, and his two best friends, Alex Miller and Dinah Evans. But with the realization that he only has a few more weeks left in his high school life, a bit of urging from his best friends, and the good luck that the comet promises to bring, Louis decides to triumph over his personal tragedies and reconnect with the friends he once abandoned before the time comes to sing their graduation hymn.
Will he succeed, however, as a string of mysterious murders begin to transpire in the small town just after the comet passes? Murders that point to a close friend. Murders that stir memories Louis would rather forget. Murders that are far from the mundane...