Superman 2023 TP VOL 02 the Chained

Following the events of Knight Terrors, a new Superman supervillain arises!Following the the events of Knight Terrors and the events of Superman Vol. 1: Supercorp, Superman has learned that Lex Luthor kept a prisoner beneath Stryker\'s Island for decades.Who are they and why did Lex lock them up?Can Superman unlock the secrets of the Chained?