SweetAngelBirdie
Years after the Triwizard Tournament, a hidden secret lies beneath the Black Lake-one that Hogwarts was never meant to uncover. When a fiercely adventurous student ventures deeper than anyone before her, she discovers a haunting truth: students long thought lost have been trapped in magical stasis for years, guarded by merfolk bound by fear and silence. Defying both magic and myth, she risks everything to free them-igniting tension between two worlds and unraveling a mystery buried in time.
Among those she saves is a boy unchanged by the years, yet deeply marked by them-her best friend's uncle, now her equal in age but not in experience. As they navigate the aftermath of lost time, their bond grows from shared survival into something far more complicated. But it is only after Hogwarts, under the glow of a long-awaited reunion, that their story truly begins-where past and present collide, and love finally finds its moment to surface.