After an enigmatic catastrophe erased all memory of the past, survivors awoke in a sealed city built from scorched stone and silence. They call it the City of Ashes—a place ruled by the shadowy Council of Purity, where speaking of the past is forbidden, and those who break the law vanish without a trace.

Seventeen-year-old Lian has always followed the rules—until the day strange dreams begin to haunt her, filled with voices, places, and feelings she's never known... yet can't forget. When she discovers a mysterious shard of glass etched with the name Illium, a name that exists nowhere in the city, her quest for answers begins.

With the help of Ron, a banished former Council worker burdened by his own forgotten truth, Lian uncovers a hidden world beneath the surface of their reality—one where terrifying Shadows hunt those who remember, and memories are not lost but sealed away. Together, they must confront the illusion imprisoning their world, risking everything to reclaim the truth.

As walls crumble and the past resurfaces, Lian learns that the key to the future lies not in forgetting, but in remembering—no matter how painful the truth may be.