You Must Be New Here is a suspense novel by Katie Sise that explores themes of friendship, motherhood, and secrets within a seemingly idyllic community. The story centers on Sloane, a mother of a medically fragile child, who forms a close bond with her new neighbor, Harper. When Harper's babysitter disappears, a web of suspicion and tension unravels, revealing the dark undercurrents and long-held secrets of the community
