
In "City of Lost Souls," Cassandra Clare's fifth Mortal Instruments installment, dark fantasy meets forbidden love. With 50+ million copies sold worldwide and adapted for screen, this NYT bestseller explores how far one will go to save their soulmate - even if it means losing themselves.
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The Shadowhunter world has been plunged into chaos. Simon Lewis stands outside his family home, rejected by his own mother who believes her son has been replaced by a monster. The mezuzah burns his vampire flesh, but it's his mother's threat to kill him if he approaches his sister that truly wounds him. When his phone rings with Clary's devastating news that both Jace and Sebastian have vanished from the Institute's roof, leaving only blood and broken glass, their nightmare truly begins. Two weeks later, the Clave has "de-prioritized" the search for Jace and Sebastian, despite passionate objections from Magnus, Luke, and others. Alec confirms through his parabatai bond that Jace is alive, but something is fundamentally wrong. Frustrated with official channels, Clary suggests seeking help from the Seelie Queen, who demands payment - the return of faerie-made rings that allow mind-to-mind communication. She promises information about why tracking spells have failed, hinting ominously that when they find Jace, "he may well not be quite as you left him." Clary's world shatters when she witnesses Jace and Sebastian in the Institute's library, acting like close friends and brothers. Sebastian appears completely restored, his formerly dark hair now silvery-white, while Jace seems physically unharmed but fundamentally altered. They collect ancient texts on demon summoning, with Sebastian casually mentioning they'll be "ruling this place in a few weeks" before vanishing using Sebastian's enchanted ring. Brother Zachariah reveals the devastating truth: Lilith performed an ancient twinning ritual between Sebastian and Jace - a bond far more powerful than even the parabatai connection. Their lives are now so intertwined that the death of one would instantly trigger the death of the other. Sebastian has complete control over Jace's beliefs and moral compass. The only aspect of his true self that remains unchanged is his deep love for Clary, though even this pure emotion has become twisted by Sebastian's influence.
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