She saved the world once. Now something older wants her attention. Alice Landers finally has what she fought for. A quiet life selling antiques, cold noodles on the couch with Matt, and only the occasional tourist bus outside her apartment. Sure, she still answers philosophical questions from an ancient mathematical consciousness, but that's just Tuesdays now. Then a letter arrives at her pawn shop. No return address. No postmark. Just a message that dissolves into silver dust after she reads it. Another ancient entity is waking. And it's been asking for her by name. So much for boring. Now Alice must uncover who—or what—is rising from the depths that even the Song Below doesn't understand. Why it wants her specifically, and whether her particular brand of chaotic diplomacy can work twice. With her husband’s Root connection growing stranger, Ronan haunted by warnings from Lyra's consciousness, and her magical found family pulled into a mystery older than mathematics itself, Alice faces an impossible What do you do when something ancient doesn't want to negotiate—it wants to choose you? In the epic conclusion to the series, Alice will finally discover why chaos chose her—and what it means to embrace the beautiful mess she was always meant to become.